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30 March, 13:42

How to solve this problem x + 9=-12

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  1. 30 March, 17:11
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    X + 9 = - 12

    x + 9 - 9 = - 12 - 9

    x = - 12 - 9

    x = - 1 (12+9)

    x = - 1 (21)

    x = - 21
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