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13 March, 10:05

Solve using Combining Like Terms (CLT)

7 + 4d + 5d = 7d + 3

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Answers (1)
  1. 13 March, 12:19
    0
    d = - 2

    Step-by-step explanation:

    7 + 4d + 5d = 7d + 3

    Combine like terms

    7+9d = 7d+3

    Subtract 7d from each side

    7+9d-7d = 7d-7d+3

    2d + 7 = 3

    Subtract 7 from each side

    2d+7-7 = 3-7

    2d = - 4

    Divide each side by 2

    2d/2 = - 4/2

    d = - 2
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