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6 November, 13:40

Twice the sum of a number and 77 is equal to three times the difference of the number and 6. Find the number

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  1. 6 November, 13:42
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    x + 77 = 3 (x - 6)

    x + 77 = 3x - 18

    x + 77 + 18 = 3x - 18 + 18

    x + 95 = 3x

    x + 95 - x = 3x - x

    95 = 2x

    x = 95/2

    x = 47.5
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