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16 December, 04:37

The sum of twice a number x and one-half the number is 30

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  1. 16 December, 05:40
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    2x + 1/2x = 30

    2 1/2x = 30

    x = 30 / 2 1/2 = 12

    check:

    2 (12) + 1/2 (12) = 24+6 = 30 = True

    the number is 12
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