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16 September, 08:59

How to write twice the sum of a number and 9 equals 7?

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  1. 16 September, 10:34
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    2 (x+9) = 7

    If you wanted to simplify;

    2x+18=7 (Distributive Property)

    2x=-11 (Subtraction Property of Equality)

    x=-11/2 (Division Property of Equality)
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