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High school

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Maths;{2X-2Y=4+{3X+4Y=6

  • High school - ,

    are you solving the 2 equations

    2x-2y = 4
    3x+4y = 6 ???

    double the 1st, then add it to the 2nd

    4x-4y=8
    3x+4y=6
    7x = 14
    x = 2

    into the 1st:
    4 - 2y = 4
    -2y = 0
    y = 0

    x=2 , y = 0

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