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21 April, 07:27

What number times 3 plus one equals 16

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  1. 21 April, 07:43
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    x*3 + 1 = 16

    The unknown number is 5

    Step-by-step explanation:

    Let x be the unknown number

    x*3 + 1 = 16

    Subtract 1 from each side

    3x + 1-1 = 16-1

    3x = 15

    Divide each side by 3

    3x/3 = 15/3

    x = 5

    The unknown number is 5
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