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3 October, 11:56

What is 9 (d + 1) = 99 in two step equations

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  1. 3 October, 12:26
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    Step-by-step explanation:

    9 (d + 1) = 99

    Open bracket

    9d + 9 = 99

    Collecting like terms

    9d = 99 - 9

    9d = 90

    Dividing by 9

    d = 90/9

    d = 10
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