Question

if the sum of three consecutive multiples of 7 is 84 find the value of x
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Answer 1

Answer:

Step-by-step explanation:

Let the three consecutive multiples of 7 are 7x,7(x+1),7(x+2).

Given that sum of three consecutive numbers =84

7x+7x+7+7x+14=84

21x+21=84

21(x+1) = 84

(x+1) = 84/21

x+1=4

x=3