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14 August, 05:34

Solve the system using substitution or elimination and describe your steps. Be sure to verify your solution. • x = y - 3 2x + y = 12

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  1. 14 August, 05:42
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    x = y - 3

    2x + y = 12

    substitute x = y - 3 into 2x + y = 12

    2x + y = 12

    2 (y - 3) + y = 12

    2y - 6 + y = 12

    3y - 6 = 12

    3y = 18

    y = 6

    substitute y = 6 into x = y - 3 to find x

    x = y - 3

    x = 6 - 3

    x = 3

    answer

    x = 3 and y = 6
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