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21 December, 00:09

9m+14=2m How do I solve and check answer?

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  1. 21 December, 02:22
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    9m+14=2m

    9m-2m = - 14

    7m = - 14

    m = - 2

    to check: u need to chance the m to - 2

    9m - 2m = - 14

    9 * - 2 = - 18

    -2 * - 2 = - 4

    -18 - (-4) = - 14

    i think is right
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