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7 July, 08:33

Four times the dference of a number and three is twelve find the number

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  1. 7 July, 08:51
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    the number is 6

    let the number be n, then the difference of this number and 3 is n - 3

    4 times this is 4 (n - 3) = 12 (solve for n)

    divide both sides by 4

    n - 3 = 3 (add 3 to both sides)

    n = 3 + 3 = 6

    the number is 6
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