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Math Help - Solving Systems Help.

  1. #1
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    Solving Systems Help.

    per my other posts..Im trying to tutor my son. Im basically going to put the problems and answers I come up with..I just want someone to double check them if that is ok.
    Solve using substitution:
    2x = 1 - y
    5x - 10y = -10

    I come up with the answer:

    y=1 x=0
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  2. #2
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    Re: Solving Systems Help.

    I keep getting this answer { x = 19/8, y = 53/8 } for problem:
    Solve using substitution:
    7x - y - 2 = 8
    3y - 5x = 8
    HOWEVER I need to break it down and DO NOT KNOW HOW TO BREAK IT DOWN!
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  3. #3
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    Re: Solving Systems Help.

    MODS..Please remove..I GOT IT!!!
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  4. #4
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    Re: Solving Systems Help.

    Quote Originally Posted by zales127 View Post
    I keep getting this answer { x = 19/8, y = 53/8 } for problem:
    Solve using substitution:
    7x - y - 2 = 8 [1]
    3y - 5x = 8 [2]
    I would convert [1] to y=7x-10.
    Then substitute into [2], 3(7x-10)-5x=8
    Now solve.
    Thanks from zales127
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