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Math Help - Simultaneous equations.

  1. #1
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    Question Simultaneous equations.

    Hello can someone please teach me how to solve this problem I haven't done math in 3 years and Im going back to school, I cant remember how to do any of it.

    12x - 5y = 9
    3x - 8y = -18

    Find X and Y
    The answers are
    x = 2
    y = 3

    Thanks for any help
    Last edited by mr fantastic; September 17th 2011 at 12:33 AM. Reason: Re-titled.
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  2. #2
    Master Of Puppets
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    Re: Algebra Help

    Multiply the second equation through by 4, then take the first equation away from that result.

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  3. #3
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    Re: Algebra Help

    Yes I figured out how to do it thanks alot!
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