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tootie149

  • 3 years ago

9(4x-4)=3(12x+7) when I worked t out i got just 57 no x my choices are all real numbers or set is empty which is it ?

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  1. godorovg
    • 3 years ago
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    okay i can help you here if you on here?

  2. tootie149
    • 3 years ago
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    i am here

  3. tootie149
    • 3 years ago
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    how do I write this

  4. godorovg
    • 3 years ago
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    show me what you did with this 9(4x-4)=3(12x+7)

  5. tootie149
    • 3 years ago
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    OK, here we go

  6. godorovg
    • 3 years ago
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    work with just the nine ony

  7. godorovg
    • 3 years ago
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    do this only 9(4x-4) I want to see your steps.

  8. tootie149
    • 3 years ago
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    9(4x-4)=3(12x+7) 36x-4=36x+7 36x-4+4=36x+7+4 36x-36x=11 ok here is where I get lost because there is no x so is the answer real or empty

  9. tootie149
    • 3 years ago
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    my bad i messed up

  10. tootie149
    • 3 years ago
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    9(4x-4) is 36x-36

  11. godorovg
    • 3 years ago
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    yes so what is x now?

  12. tootie149
    • 3 years ago
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    36 ?

  13. godorovg
    • 3 years ago
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    no .. try again hint we want X alone.

  14. tootie149
    • 3 years ago
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    there is no x because 36x-36x is nothing

  15. tootie149
    • 3 years ago
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    lost

  16. tootie149
    • 3 years ago
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    9*4=36 and 3*12 is 36

  17. godorovg
    • 3 years ago
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    okay first off there are not two 36x-36x wrong. 9(4x-4) doesn't = 36x-36x no

  18. tootie149
    • 3 years ago
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    36x-36 ?

  19. godorovg
    • 3 years ago
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    yes

  20. tootie149
    • 3 years ago
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    LOL I feel so stupid

  21. godorovg
    • 3 years ago
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    don't feel that way, sometimes i make little mistakes as well. we all learn in different ways.

  22. tootie149
    • 3 years ago
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    yes I know I am a visual learner

  23. godorovg
    • 3 years ago
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    yes that is okay.

  24. tootie149
    • 3 years ago
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    now for the other side i got 36x+21

  25. godorovg
    • 3 years ago
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    hey one thing is slow down and do the steps, don't skip ahead just some friendly advice

  26. campbell_st
    • 3 years ago
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    tootie you are correct with your solution the expansion is 36x - 36 = 36x + 21 subtract 36x from both sides and you get -36 = 21 no solution

  27. godorovg
    • 3 years ago
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    yes that is 36x+21 now again how do we get x alone?

  28. tootie149
    • 3 years ago
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    subtract 36x-36x

  29. campbell_st
    • 3 years ago
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    its basically saying y = 36x - 36 and y = 36x + 21 the lines are parallel ... so no intersection....

  30. godorovg
    • 3 years ago
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    campbell yes are right about 36x-36x I wasn't at that point yet..

  31. campbell_st
    • 3 years ago
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    well tootie has actually has a correct piece of maths above... sorry...

  32. tootie149
    • 3 years ago
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    so the solution set is empty. right?

  33. godorovg
    • 3 years ago
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    I was walking through the steps campbell

  34. campbell_st
    • 3 years ago
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    correct... just practise expanding terms in brackets...

  35. campbell_st
    • 3 years ago
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    the expansion of the pronumeral was correct... its just the constant term you need to be aware of

  36. tootie149
    • 3 years ago
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    thank you for taking me through the steps I was not sure if I worked it right Godorovg

  37. godorovg
    • 3 years ago
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    tootie 149 I was going through the steps with you, and to make sure you understood what was going

  38. k.rajabhishek
    • 3 years ago
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    empty is the answer

  39. tootie149
    • 3 years ago
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    Thank you so much I needed to know I worked it right, and you did that thank you again

  40. campbell_st
    • 3 years ago
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    hope it helps...

  41. godorovg
    • 3 years ago
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    oh no trouble at all..

  42. tiffanymak1996
    • 3 years ago
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    in this case if there is no x, then the set is empty, if it's all real number, all real number would work with the equation.

  43. godorovg
    • 3 years ago
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    right back at you I am a fan of yours now too. :)

  44. tootie149
    • 3 years ago
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    tiffanymak could you give me an example of what you mean when it comes to real numbers

  45. godorovg
    • 3 years ago
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    real numbers are 1,2,3 ,5 and so on

  46. tootie149
    • 3 years ago
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    still lost when it comes to real numbers.

  47. tiffanymak1996
    • 3 years ago
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    real numbers are like all kinds of number, rational, irrational, integer etc. just not complex number.

  48. tiffanymak1996
    • 3 years ago
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    say: integer: - [infinite], -8, -7, -6,-5...0,1,2,3,4,5....., [infinite] these are real no.s

  49. godorovg
    • 3 years ago
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    hey tootie look at this http://math10.edcentre.ca/bridgemath/numbers/setnos.php

  50. tiffanymak1996
    • 3 years ago
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    sqrt 2, sqrt3, pi etc, are real numbers

  51. tiffanymak1996
    • 3 years ago
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    yeah, and well that link too.

  52. tiffanymak1996
    • 3 years ago
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    almost every kind of no.s are real, except for i, (which is sqrt(-1)) the imaginary number

  53. godorovg
    • 3 years ago
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    Tootie what is the biggest problem in the class you are in??

  54. tootie149
    • 3 years ago
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    there is so much I do not know where to start

  55. godorovg
    • 3 years ago
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    okay I am guessing this college algbra right?

  56. tootie149
    • 3 years ago
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    YOU got it

  57. godorovg
    • 3 years ago
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    okay first off in this class I can find you videos where can get the basics by watching would that help you?

  58. tootie149
    • 3 years ago
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    but the said part my daughter was doing this in the 6th grade here, and they make little remarks about it

  59. tootie149
    • 3 years ago
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    yes that would be great!!!!!!!

  60. godorovg
    • 3 years ago
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    Tootie here is a shock I taught myself math through videos on the internet.

  61. tootie149
    • 3 years ago
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    really please give me the links.

  62. tiffanymak1996
    • 3 years ago
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    a really good site would be the paul's notes

  63. godorovg
    • 3 years ago
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    okay will back

  64. tootie149
    • 3 years ago
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    paul's notes

  65. tootie149
    • 3 years ago
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    I will be waiting Godorovg

  66. campbell_st
    • 3 years ago
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    tootie... have a look at Khan academy on youtube..or google Khan Academy... they have lots of videos explaining concepts

  67. tootie149
    • 3 years ago
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    never heard of them

  68. tiffanymak1996
    • 3 years ago
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    MIT has free online courses for tons of subject, i don't know about algebra but you can check out their site.

  69. tootie149
    • 3 years ago
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    just looked it up thanks so much campbell_st

  70. tootie149
    • 3 years ago
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    the MIT?

  71. tiffanymak1996
    • 3 years ago
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    yeah

  72. tootie149
    • 3 years ago
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    ok will look it up thanks so much, so much

  73. godorovg
    • 3 years ago
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    tootie watch this video http://www.youtube.com/watch?v=1Amt_-uB9QQ

  74. tiffanymak1996
    • 3 years ago
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    http://ocw.mit.edu/courses/

  75. tiffanymak1996
    • 3 years ago
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    that's the link

  76. tootie149
    • 3 years ago
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    looking now will come back after i look at it

  77. godorovg
    • 3 years ago
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    tootie it is the first part of this class

  78. tootie149
    • 3 years ago
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    thanks to everyone for their help. really thanks

  79. tootie149
    • 3 years ago
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    Ok

  80. godorovg
    • 3 years ago
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    Always glad to help out :)

  81. tiffanymak1996
    • 3 years ago
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    so, do you home study math?

  82. godorovg
    • 3 years ago
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    yes and I am working on Physics and chem through MIT open course study right now. Plus Calc 1 and Cal2 as well

  83. tiffanymak1996
    • 3 years ago
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    cool, i study through stanford.

  84. godorovg
    • 3 years ago
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    I wish I could get in there.

  85. godorovg
    • 3 years ago
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    can't now because I ran away to college when I wasn't ready GPA way too low.

  86. tiffanymak1996
    • 3 years ago
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    me too, i'm only joining their for gifted child program, but still has two years to go till college.

  87. godorovg
    • 3 years ago
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    yeah, funny thing is I didn't how I was gifted math either.

  88. tiffanymak1996
    • 3 years ago
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    what's the difference between college and university?

  89. godorovg
    • 3 years ago
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    Tiffany when I first took I couldn't get it and than day by day it started to make sense until now here I am.

  90. godorovg
    • 3 years ago
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    nothing really expect for name . Now there two year and four colleges and University out there. It all depends on what you want to do in college?

  91. godorovg
    • 3 years ago
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    also, depending on your major you could go on-line and get your degree.

  92. tiffanymak1996
    • 3 years ago
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    i can't decide yet, math and literature is my life, but my parents wants me to be a lawyer, just to make sure i'll have enough to live by

  93. godorovg
    • 3 years ago
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    Lawyers would be okay, only thing is you go to school for eight to nine years than have to past a test to become a lawyer.

  94. tiffanymak1996
    • 3 years ago
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    i'll be so old by then :)

  95. godorovg
    • 3 years ago
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    nah you are still pretty young I am guessing

  96. tiffanymak1996
    • 3 years ago
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    nah, just old for starting to work

  97. godorovg
    • 3 years ago
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    yeah it happens no big deal. I think most jobs want older people now a days

  98. godorovg
    • 3 years ago
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    hey tootie what you think about the video?

  99. tootie149
    • 3 years ago
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    Loved it godorvg and all of the other sites as well

  100. godorovg
    • 3 years ago
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    Tootie I know in you can do this math, relax and take your time with things. Also, don;t be afraid to ask for help if you need it. There is nothing wrong in asking a questions

  101. godorovg
    • 3 years ago
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    Tootie when watching these videos please take notes, it only helps you to learn the what is being taught.

  102. tootie149
    • 3 years ago
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    Thank you I had no one until I found this site. I thank God for it and all of you

  103. godorovg
    • 3 years ago
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    hey we are here to help you out. Please don't be afraid to send me a message and ask for help and you too Tiffany

  104. godorovg
    • 3 years ago
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    Tiffany it is almost one in the morning here, must get some sleep talk with you latter.

  105. tootie149
    • 3 years ago
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    good night godorovg

  106. tootie149
    • 3 years ago
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    hay tiffanymak I have a word problem up can you take a look at it for me? please

  107. tiffanymak1996
    • 3 years ago
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    yeah, feel free to ask

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