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22 May, 00:52

14. The difference of twice a number and 7 is 9.

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  1. 22 May, 01:20
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    16

    Step-by-step explanation:

    Let the unknown number be x

    2x - 7 = 9

    2x = 9 + 7

    2x = 16

    2x:2 = 16:2

    x = 8

    8x2

    =16
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