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15 March, 16:46

If 3 is added to a certain number, the results is 15 less than three times the number. Find the number

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  1. 15 March, 17:08
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    number = 9

    Step-by-step explanation:

    number = x

    3 is added to a number = (x+3) result

    3 times the number = 3x

    15 less than three times the number = 3x-15

    the results is 15 less than three times the number

    x+3 = 3x - 15

    3x-x = 3+15

    2x = 18

    x=9
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