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14 April, 00:37

7d-12+2d+3=18 solve variable. include steps, also check your answer!

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  1. 14 April, 01:02
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    d = 3

    Step-by-step explanation:

    7d - 12 + 2d + 3 = 18

    9d - 9 = 18

    9d = 27

    d = 3

    CHECK:

    7 (3) - 12 + 2 (3) + 3 = 18

    21 - 12 + 6 + 3 = 18

    18 = 18
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