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30 July, 21:48

Solve 9x + 7 = 7x - 5

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  1. 31 July, 00:36
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    9x + 7 = 7x - 5

    9x - 9x + 7 = 7x - 9x - 5

    7 = - 2x - 5

    7 + 5 = - 2x - 5 + 5

    12 = - 2x

    12/-2 = - 2x/-2

    -6 = x
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