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16 September, 05:39

Solve the system of equations using the substitution method. {y=-3x+7 x=-2y-16

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  1. 16 September, 09:21
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    Y = - 3x + 7

    x = - 2 * (-3x+7) - 16

    x = - 2 * (-3x) - 2*7-16

    x = 6x-14-16

    x=6x-30

    6x-x=30

    5x=30

    x=30:5

    x=6

    y=-3*6+7

    y=-18+7

    y = - 11
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