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tootie149

  • 2 years ago

lost yet again -4/5x=3/5

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  1. tootie149
    • 2 years ago
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    help

  2. tootie149
    • 2 years ago
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    I got -12/25 but this does not work when i plug it in

  3. lgbasallote
    • 2 years ago
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    is that \[\huge -\frac 45 x = \frac 35\]

  4. tootie149
    • 2 years ago
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    yes, it is how did you type in the fraction?

  5. lgbasallote
    • 2 years ago
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    try clicking the equation button by the comment box...you should see the fraction command there

  6. lgbasallote
    • 2 years ago
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    anyway if you multiply both sides by 5 what do you get?

  7. tootie149
    • 2 years ago
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    ok i see it now thanks

  8. lgbasallote
    • 2 years ago
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    welcome

  9. tootie149
    • 2 years ago
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    for the -4/5 * 5 =-4 and 3/5*5=3

  10. lgbasallote
    • 2 years ago
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    yes dont forget x

  11. tootie149
    • 2 years ago
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    x=-4/3

  12. tootie149
    • 2 years ago
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    wow I get so lost so quick

  13. lgbasallote
    • 2 years ago
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    it's not -4/3

  14. tootie149
    • 2 years ago
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    y, what did i do wrong

  15. lgbasallote
    • 2 years ago
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    i assume you tried to solve it mentally. that's what you did wrong. do it step by step

  16. tootie149
    • 2 years ago
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    ok give me a min

  17. lgbasallote
    • 2 years ago
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    sure

  18. tootie149
    • 2 years ago
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    do i flip the -4/5 when I isolate the x like this -4/5x=3/5 x= 3/5 div -5/4

  19. lgbasallote
    • 2 years ago
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    \[\huge -\frac 45 x = \frac 35\] you start by multiplying both sides by 5

  20. tootie149
    • 2 years ago
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    y 5

  21. tootie149
    • 2 years ago
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    is it because both of the fraction have 5?

  22. lgbasallote
    • 2 years ago
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    you multiply both sides by 5 because x has a denominator of 5

  23. tootie149
    • 2 years ago
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    ok so this gets rid of the fractions

  24. tootie149
    • 2 years ago
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    right ?

  25. lgbasallote
    • 2 years ago
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    yes. so what does the equation look like after?

  26. tootie149
    • 2 years ago
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    -4x=3 ?

  27. lgbasallote
    • 2 years ago
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    right. so now what would you do?

  28. tootie149
    • 2 years ago
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    div both sides by -4

  29. tootie149
    • 2 years ago
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    -0.75

  30. tootie149
    • 2 years ago
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    x=0.75

  31. tootie149
    • 2 years ago
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    -0.75 my bad

  32. lgbasallote
    • 2 years ago
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    yes that is right. but you should but it in fraction for

  33. tootie149
    • 2 years ago
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    -4/3

  34. lgbasallote
    • 2 years ago
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    form*

  35. lgbasallote
    • 2 years ago
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    how did you get -4/3? (after i said it wasnt right)

  36. tootie149
    • 2 years ago
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    1 1/3 sorry

  37. tootie149
    • 2 years ago
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    looked at the wrong part of my paper

  38. tootie149
    • 2 years ago
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    1/3

  39. lgbasallote
    • 2 years ago
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    ....what did you get again after you divided by 5?

  40. tootie149
    • 2 years ago
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    -4x=3

  41. lgbasallote
    • 2 years ago
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    so what did you after that?

  42. simplicity
    • 2 years ago
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    -4x/5=3/5 =>-4x=3*5/5 =>-4x=3 =>x=-3/4

  43. lgbasallote
    • 2 years ago
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    what did you do*

  44. tootie149
    • 2 years ago
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    -3/4

  45. tootie149
    • 2 years ago
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    wow I have been typing it upside down

  46. lgbasallote
    • 2 years ago
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    what were you doing to get -4/3?

  47. tootie149
    • 2 years ago
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    forgot to div both sides by -4 and because i can not reduce -3/4 that is my answer

  48. lgbasallote
    • 2 years ago
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    you need to remember that you divide both sides by the coefficient of x ALWAYS... in this case your coefficient is 4..that's why you divide both sides by 4

  49. tootie149
    • 2 years ago
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    because what i do to one side I do to the other

  50. tootie149
    • 2 years ago
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    in order to get x alone I div -4x by -4 and I div 3 by -4 also this gives me -3/4

  51. godorovg
    • 2 years ago
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    guys this problem is simple -4/5x=3/5 take the -4/5 and divide by 3/5 so you have X= -4/5 divided by 3/5 now flip the 3/5 to 5/3 so that is to change the divide to times so now you have -4/5 times 5/3= ??

  52. tootie149
    • 2 years ago
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    -4/3

  53. tootie149
    • 2 years ago
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    I am so wrong just looked at it

  54. lgbasallote
    • 2 years ago
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    uhhh what?

  55. lgbasallote
    • 2 years ago
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    so what's your answer...-3/4 or -4/3?

  56. tootie149
    • 2 years ago
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    IDK!!!!!!!!

  57. tootie149
    • 2 years ago
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    sorry for yelling

  58. lgbasallote
    • 2 years ago
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    lol

  59. lgbasallote
    • 2 years ago
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    you have -4x = 3 you said you divide by =4 so what happens if you do that?

  60. tootie149
    • 2 years ago
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    the web site wolfram alfa said it is -4/3

  61. lgbasallote
    • 2 years ago
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    could you post the URL of that wolframalpha?

  62. tootie149
    • 2 years ago
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    http://www.wolframalpha.com/input/?i=-4%2F5x%3D3%2F5 here it is

  63. godorovg
    • 2 years ago
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    no need that is right -4/3 that is what I got when I worked the problem out as well.look at my post where I went step by step through this problem.

  64. tootie149
    • 2 years ago
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    reduced form is 1and 1/3

  65. nickhouraney
    • 2 years ago
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    nooo

  66. lgbasallote
    • 2 years ago
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    you told be the problem was \[\huge -\frac 45 x = \frac 35\] what you posted in wolframalpha was \[\huge -\frac{4}{5x} = \frac 35\] see the difference/

  67. lgbasallote
    • 2 years ago
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    you told me*

  68. tootie149
    • 2 years ago
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    no

  69. lgbasallote
    • 2 years ago
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    in the first one, the x is in the numerator. In the second one, the x is in the denominator

  70. lgbasallote
    • 2 years ago
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    so which one is it?

  71. godorovg
    • 2 years ago
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    what is this again??

  72. tootie149
    • 2 years ago
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    the x is off to the side of the side like -4/4(x)

  73. lgbasallote
    • 2 years ago
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    then like i said -4/3 is wrong

  74. lgbasallote
    • 2 years ago
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    this is how you type it in wolfram http://www.wolframalpha.com/input/?i=-4%2F5+x%3D3%2F5

  75. lgbasallote
    • 2 years ago
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    wolfram is very meticulous and choosy so you have to wrie the question properly

  76. lgbasallote
    • 2 years ago
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    got it now?

  77. lgbasallote
    • 2 years ago
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    @tootie149 are you still there?

  78. TheViper
    • 2 years ago
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    \[\huge -\frac 45 x = \frac 35\] \(\LARGE{-4x=\frac{3\times5}{5}}\) \(\LARGE{-4x=3}\) \(\LARGE{x=\frac{3}{-4}}\)

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