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4 November, 19:32

1/3 of a number is 12 less than the number itself

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  1. 4 November, 19:36
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    Let "x" be a substitute for "a number"

    1/3 (x) = x-12 Multiply by 3

    x=3x-36 Get n onto the same side of the equation

    2x=36 Divide by 2

    x=18

    That's your answer.
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