A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

-4x+3=6x-7...x=-2??? Can someone c if this the right answer

  • This Question is Closed
  1. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x=-1

  2. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    You ned to get rid of the -4x first by adding 4x to both sides.

  3. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    3 = 10x - 7

  4. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    add 7 to both sides

  5. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    10 = 10x

  6. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    divide both sides by 10

  7. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x = 1

  8. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so i get rid of the - sign in front of the -4x and just add it to the 6x

  9. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes you get rid of the -4x by +4x to both sides. I get rid of the -4x because it is smaller than 6x...

  10. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok cuz i used-4 + 6x and got -2x im lost

  11. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    To get rid of let's say +5 you would -5 because that would give you 0 To get rid of -3 you + 3 because that would give you 0 To get rid of +7x you -7x because that would give you 0 To get rid of -4x you +4x because that would give you 0 Does that help?

  12. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    actually since u explained it like that yes it does......sry if im being high maintenance hate not understanding my teacher sucks at his job

  13. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x/-7-9 =-3......the / means divide so i need to multiply?

  14. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    OK.. You only have an x on one side so you need to get the x by itself. You always add or subtract first if needed. So you need to get rid of the -9 first

  15. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x/-7=-12?

  16. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    To get rid of -9 you need to +9 -3 + 9 = 6 so x/-7 = 6 Do you understand?

  17. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    not really.....

  18. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    When it says to solve.. The first thing you should do is go to the side with the "x".. If both sides of the = sign have an "x" then you get rid of the smallest "x" by either adding or subtracting the "x". you do the opposite, if it is a positive "x" then you subtract. if it is a negative "x" then you add.. In this case, you only have x on one side. Do you know how to do this problem. x + 3 = 10

  19. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x=7

  20. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Without actually just figuring that out... do you know what to do algebraically?

  21. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes subtract 3 from both sides

  22. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Good!!! Look at the problem we are doing and pretend the -7 is not there... we would have x - 9 = -3 How would you solve this?

  23. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    add 9 to both sides

  24. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Good.. That is what you do first on this problem. NOw.. How would you solve 2x = 10 (algebraically)

  25. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    divide 10 by 2 since 2x is multiplying u need to divide

  26. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Great.. So let's do our problem... x/-7 - 9 = -3 You add 9 to both sides x/-7 = 6 then to get rid of "divide by -7" you multiply by -7 .. put a (-7) to the left of the x and to the right of the 6 (-7) x = 6 (-7) ----- -7

  27. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the -7's cancel and you get x = -42

  28. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    making sense so if x/-6=-4 can i use the the -4 or the -6? sry if stupid ?

  29. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    You always go to the side with the x... don't even look at the other side. So all you see is x/-6 What would you do then?

  30. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    add 6 so x=2

  31. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Read this to yourself x/-6 Did you say x divided by -6?

  32. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

  33. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    So to get rid of divided by -6 you should multiply by -6. (-6)x -4(-6) ----- = -6 The -6's cancel and you get x = 24

  34. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wow im retarded got frazzled since there was only 2 numbers.......

  35. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Do you have another problem?

  36. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    im sure i will got like 20 left for homework will u b on for a while

  37. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Sure if you want me to help you.

  38. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thank u so much for taking time and being paitent

  39. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    real quick lol 3x+5=4x+16......x=3 or -11=x

  40. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    x = -11 3x + 5 = 4x + 16 get rid of your smallest x (3x) by subtracting 3x from both sides 5 = x + 16 subtract 16 from both sides -11 = x x = -11

  41. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thats what i got my friend and i were in a debate

  42. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thx again

  43. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    do u know how to use a algebraic calculator

  44. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Probably.. what do you need to know

  45. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    trying to check my work not sure how to enter the equation my friend gave me a ti 30xa

  46. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    You mean of the problem we just did? Just type 3(-11) + 5 = You should see -28 Now type 4(-11)+16 = You should see -28 That means you were correct

  47. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    dont i need to put x in the equation

  48. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    No ... you put in what you got for x... in the last problem it was -11

  49. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok -2(3x+1)=3x-20......can we do together?

  50. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes. When you have parentheses, you need to get rid of them first... you do this by distributive method.. can you do this?

  51. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes -6x + -2=3x-20....first step

  52. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Good... It's best not to have a + next to a - Just write -2 * 3x = -6x and -2* 1 = -2 So we write -6x - 2 = 3x - 20 NOW you have x's on both sides - so get rid of the smallest x.

  53. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so y do we change from adding to subtracting

  54. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    WOW.. hard to explain... Were you ever taught that when you were given a "- 5" you could change that into a "+ a negative"

  55. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Plus a negative 2 (+ -2) is the same thing as subtracting 2 (-2)

  56. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    You just never want two signs next to each other... So going back to the problem -2(3x + 1) you should think of this. -2(3x) and -2(+1) so you get -6x -2 **** THE SIGN IN FRONT OF A NUMBER ALWAYS GOES WITH THAT NUMBER... it's like it belongs to that number.

  57. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    We can do it your way... here we go -6x + -2 = 3x - 20 How do we get x's on one side (get rid of the smallest "x")

  58. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ur way makes alot more sense here we go

  59. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    just to make sure if i use the smaller x it would be 9x?

  60. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    very good -2 = 9x - 20 NOW that you have x on one side ONLY LOOK AT THE side with the x... What do you get rid of next.

  61. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    or - 3x

  62. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    To get rid of the -6x you need to +6x to both sides.

  63. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    add 20 or 2 to both sides get -18.....-18/9x= x=-2?

  64. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Very important you understand what I am saying. When there is only one x in your problem. You go to the side of the equal sign that has the x. YOUR EYES SHOULD NOT EVEN SEE THE OTHER SIDE OF THE = sign. In this case.. take your left hand and cover up the -2. Your eyes should ONLY see 9x - 20 and in this case you do + 20 to both sides.

  65. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    okok i knew that trying to rush so im not holding u up......x=2

  66. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes...

  67. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    thx again whats ur name im keith

  68. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Andrea

  69. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    andrea i cant thk u enough

  70. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Do you have another problem? By the way, if you ever need help after tonight.. I would be glad to help you.. you can email me at amcbeth328@gmail.com

  71. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    4(3x-5)=-4x+27 that equals 12x-20=-4x+27, so would it b 12x - -4x or 12x-4x?

  72. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    12x - 20 = -4x + 27 You have x's on both sides of the = sign.. get rid of the smallest x by doing the opposite.

  73. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    just wanted to know if next step = 8x or 16x

  74. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -4x is smaller than 12x so you get rid of the -4x by +4x to both sides 16x - 20 = 27

  75. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    then add 20 to both

  76. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yes and you won't get a nice answer

  77. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    16x = 47 divide by 16 x = 2.9 or 47/16 which = 2 15/16

  78. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Any more?

  79. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    7(4-x)+3=17......x=-2?

  80. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    28 - 7x + 3 = 17 -7x + 31 = 17 -7x = -14 x = 2 Almost.. how do we differ

  81. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i meant x=2 my brain is fried forgot when u divide 2 negatives u get positive

  82. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Any more? I am getting tired and need to get to bed. I have to be to school early tomorrow. But if we are close, I will hang in there.

  83. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    no im good thk u very much

  84. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    OK Keith.. keep working hard... it will pay off for you in the long run... I could see a lot of improvement with your math tonight. Have a good week at school.

  85. anonymous
    • 5 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    u too

  86. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.