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20 July, 06:57

25 more than five times the quantity of a number decreased by 7 is 0. Find the number

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  1. 20 July, 07:11
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    Write an equation, then solve it, where the number is expressed as x. The wording is a little tricky, but I take it as meaning:

    -take 7 from the number

    -multiply it by 5

    -add 25

    5 (x - 7) + 25 = 0

    5x - 35 + 25 = 0

    5x - 10 = 0

    5x = 10

    x = 2
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