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20 September, 18:20

What is the awnser to - 9xt4y=-17 9x-6y=3

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  1. 20 September, 20:08
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    Solve first to find y and - 9+9 = 0

    -9x+4y=-17

    9x-6y=3

    2y = - 14

    Y = - 14/2

    Y=-7

    Substitute your y answer into first equation solve to find x.

    -9x+4 (-7) = - 17

    -9x-28 = - 17

    -9x = - 17+28

    -9x = 11

    X = 11/-9

    X = - 1.2222 or - 1 and 2/9

    So answer is (-1.2222, - 7)
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