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Math Help - linear equation in two variables

  1. #1
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    linear equation in two variables

    solve for x and y


    (x+y-8)/2 = (x-2y-14)/3 = (3x+y-12)/11


    That's the question, no questions asked!
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  2. #2
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    Quote Originally Posted by ice_syncer View Post
    solve for x and y


    (x+y-8)/2 = (x-2y-14)/3 = (3x+y-12)/11


    That's the question, no questions asked!

    \frac{x+y-8}{2}=\frac{x-2y-14}{3} . Simplify :

    x+7y+4=0 ---- 1

    \frac{3x+y-12}{11}=\frac{x+y-8}{2} . SImplify :

    5x+9y-64=0 ---- 2

    1x5  5x+35y+20=0 ---- 3

    3-2 .. carry on here .
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  3. #3
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    Quote Originally Posted by mathaddict View Post
    \frac{x+y-8}{2}=\frac{x-2y-14}{3} . Simplify :

    x+7y+4=0 ---- 1

    \frac{3x+y-12}{11}=\frac{x+y-8}{2} . SImplify :

    5x+9y-64=0 ---- 2

    1x5  5x+35y+20=0 ---- 3

    3-2 .. carry on here .
    I did the same thing, but the book here said that the answer is x=2, y=6
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  4. #4
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    Quote Originally Posted by ice_syncer View Post
    I did the same thing, but the book here said that the answer is x=2, y=6

    Lets give it a test then :

    \frac{x+y-8}{2}=\frac{x-2y-14}{3} , sub x=2 and y=6

    0\neq-8

    so the answers are wrong .
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