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7 November, 23:19

What is the solution to the equation 7 (a - 10) = 13 - 2 (2a 3) ?

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  1. 7 November, 23:41
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    7 (a - 10) = 13 - 2 (2a + 3)

    7a - 70 = 13 - 4a - 6 = 7 - 4a

    7a + 4a = 7 + 70

    11a = 77

    a = 77/11 = 7

    a = 7.
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