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3 September, 15:25

The sum of three consecutive integers is 75. Find the integers

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  1. 3 September, 17:08
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    Let the first integer be x

    adding one to x (to represent the next integer) you get x + 1

    adding two to x to get the next integer you get x + 2

    the expression that represents three consecutive integers is x + (x + 1) + (x + 2)

    Now we need to set this equal to 75 and solve.

    x + (x + 1) + (x + 2) = 75

    3x + 3 = 75

    subtract 3 from both sides

    3x + 3 - 3 = 75 - 3

    3x = 72

    to clear the multiplication by 3, divide both sides by 3

    3x/3 = 72/3

    x = 24

    x + 1 = 25

    x + 2 = 26

    24, 25, 26 are the three integers
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