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March 28, 2017

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how i can see the exact solution of 6y-12y=12 and4x-12y=8

  • math - ,

    subtract the 2nd equation from the first, and the y's go away:

    2x = 4
    x = 2

    now, use x=2 to find y:

    6(2)-12y=12
    y=0

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