The sum of three consecutive integer is 129

Question

The sum of three consecutive integer is 129

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Ngọc Diệp 4 months 2021-08-12T08:12:54+00:00 1 Answers 1 views 0

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    2021-08-12T08:13:57+00:00

    Answer:

    42 , 43 , 44

    Step-by-step explanation:

    Let the 3 integers be  x – 1     x      and x + 1

    Set up the equation

    x – 1 + x + x + 1 = 129                     Collect the  like terms on the left

    3x = 129                                        Notice the 1s cancel out. Divide by 3

    3x/3 = 129/3

    x = 43

    x – 1 = 42

    x =     43

    x+1 =  44

    42 + 43 + 44 = 129

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