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9 (2 + x) = 10 (7 + x)

Answer in a fraction

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  1. 6 May, 09:32
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    To solve 9 (2 + x) = 10 (7 + x), we need to first evaluate the multiplication and parenthesis on each side of the equation, then get x on one side and all the numbers on the other, and finally solve. Since we can't simplify the parenthesis, we do the multiplication.

    18 + 9x = 70 + 10x

    18 = 70 + x

    x = - 52
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