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Math Help - here is my problem

  1. #1
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    here is my problem

    3(x+y)=z

    will you help me solve it

    its very frustrating
    solve for y
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  2. #2
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    Quote Originally Posted by sweetkitten View Post
    3(x+y)=z
    will you help me solve it
    What do you mean solve?
    Solve for what?
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  3. #3
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    e^(i*pi)'s Avatar
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    Solve for what? There are 3 unknowns in one equation so this can only be solved for one variable in terms of the two others.

    For example x = \dfrac{z-3y}{3}
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  4. #4
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    solve for y sorry
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  5. #5
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    e^(i*pi)'s Avatar
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    If you divide both sides by 3 you get x+y = \dfrac{z}{3}
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  6. #6
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    Quote Originally Posted by e^(i*pi) View Post
    If you divide both sides by 3 you get x+y = \dfrac{z}{3}
    but i need to solve for y
    if i subtracted x would i be solving for y????????????????
    because then the equation would be
    y=z/3-x
    i think
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  7. #7
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    e^(i*pi)'s Avatar
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    Yes that's right, I was just helping you en route
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