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21 August, 17:11

Solve: (11d+4) (9d+7) = 0

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  1. 21 August, 17:28
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    Step-by-step explanation:

    Set each factor, one by one, equal to 0, and solve each of the resulting equations:

    11d + 4 = 0 becomes 11d = - 4, or d = - 4/11

    9d + 7 = 0 becomes 9d = - 7, or d = - 7/9
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