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15 August, 05:46

5x-y+3z=-2 3x+5y+7z=92 2x-2y+4z=-6

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  1. 15 August, 08:51
    0
    if your having to solve by substitution your answer should be

    x = - 1

    y = 12

    z = 5

    Sorry if im wrong
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