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10 May, 15:00

The sum of a number 1/6 of that number 2 1/2 of that number and seven is 12 1/2 find the number

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  1. 10 May, 15:17
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    Step-by-step explanation:

    x = the number

    x + 1/6x + 2 1/2x + 7 = 12 1/2

    3 + (1/6 + 1/2) x = 12 1/2 - 7

    3 + (1/6 + 3/6) x = 5 1/2

    3 2/3x = 5 1/2

    x = (11/2) / (11/3)

    x = 11 / 2 * 3 / 11

    x = 3/2

    x = 1 1/2
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