Sum of three consecutive multiples of 7 is 7 less than five times the first multiple. Find three consecutive multiples of 7.​

Question

Sum of three consecutive multiples of 7 is 7 less than five times the first multiple. Find three consecutive multiples of 7.​

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Anna 1 week 2021-11-19T19:24:29+00:00 1 Answer 0 views 0

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    2021-11-19T19:25:43+00:00

    Step-by-step explanation:

    let one number be. x

    the first multiple. x+7

    the second multiple x+7+7 = x +14

    according to the question

    x+( x+7)+ ( x+14) +7 = 5x

    3x + 28 = 5x

    3x – 5x= -28

    -2x = -28

    x= 14

    therefore,

    first multiple= 14

    second multiple= 21

    third multiple= 28

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