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30 March, 08:24

What are three consecutive integers whoose sum of 138? Write and solve an equation with one variable.

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  1. 30 March, 08:33
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    Consecutive integers are 1 more than the other.

    If one of them is x.

    The three would be x, x + 1, x + 2

    Since the sum are 138

    x + (x + 1) + (x + 2) = 138

    x + x + 1 + x + 2 = 138

    x + x + x + 1 + 2 = 138

    3x + 3 = 138

    3x = 138 - 3

    3x = 135

    x = 135/3

    x = 47.

    So the numbers are, x, x + 1, x + 2, = 47, 47 + 1 = 48, 47 + 2 = 49

    The integers are 47, 48, and 49.
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