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1 March, 12:02

The sum of a number times 3 and 7 equals 2

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  1. 1 March, 14:56
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    3 x + 7 = 2

    3 x = 2 - 7

    3 x = - 5

    x = - 5/3

    3 (-5/3) + 7 = - 15/3 + 7 = - 5 + 7 = 2
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