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8 September, 19:51

Find three consecutive integers whose sum is - 21. 2. find three consecutive odd integers whose sum is 144. 3. the sum of three consecutive even integers is 48. what are the numbers?

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  1. 8 September, 21:58
    0
    Easy way

    -21:3=-7 which is the exact center so

    -6, - 7, - 8

    Equation

    x + (x+1) + (x+2) = - 21

    3x + 3 = - 21

    3x=-24

    x=-8

    x+1=-7

    x+2=-6

    2. Consecutive Odd Integers

    X, X+2, X+4

    X + (X+2) + (X+4) = 144

    3X+6=144

    3X=144-6=138

    X = 138/3 = 46 ... There are no 3 odd Integers that can equal an even integer

    3. 3 consecutive even number x, x+2, x+4

    X + (X+2) + (X+4) = 48

    3X+6=48

    3X=48-6=42

    X=42/3=14

    14, 16, 18
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