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15 October, 00:50

Two sevenths of a number subtracted from two fifths of that same number is 8. find the number

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  1. 15 October, 02:08
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    2/7x - 2/5x = 8

    multiply both sides by 35

    = 10x - 14x = 280

    combine 10x and 14x

    = - 4x = 280

    divide both sides by - 4

    x = - 70
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