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4 August, 06:37

How do you solve 2x + (7x+9) = 90

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  1. 4 August, 06:54
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    Step-by-step explanation:

    2x + (7x+9) = 90

    2x + 7x + 9 = 90

    9x = 90 - 9

    9x = 81

    x = 81/9

    x = 9
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