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14 February, 12:43

The number on two consecutively numbered gym lockers have a sum of159. what are the locker numbers. Use comma to separate the answer

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  1. 14 February, 12:58
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    The answer is 79 and 80.

    x - the number of the first locker

    x + 1 - the number of the consecutive locker

    Their sum is 159.

    x + x + 1 = 159

    2x + 1 = 159

    2x = 159 - 1

    2x = 158

    x = 158 / 2

    x = 79

    x - the number of the first locker: x = 79

    x + 1 - the number of the consecutive locker x + 1 = 79 + 1 = 80
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