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19 July, 05:00

Solve the following equation

3 (2x+7) = 9

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  1. 19 July, 08:40
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    3 (2x + 7) = 9 ... divide both sides by 3

    2x + 7 = 9/3

    2x + 7 = 3

    2x = 3 - 7

    2x = - 4

    x = - 4/2

    x = - 2

    or this way ...

    3 (2x + 7) = 9

    6x + 21 = 9

    6x = 9 - 21

    6x = - 12

    x = - 12/6

    x = - 2
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