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23 October, 03:23

What is the solution of the system use substituion 3x-4y=9 - 3x+2y=9

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  1. 23 October, 03:40
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    Solve for x in 3x - 4y = 9

    x = 9 + 4y/3

    Substitute x = 9 + 4y/3 into - 3x + 2y = 9

    -9 - 2y = 9

    Solve for y in - 9 - 2y = 9

    y = - 9

    Substitute y = - 9 into x = 9 + 4y/3

    x = - 9

    Therefore,

    x = - 9

    y = - 9
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