SOLUTION: the sum of three consecutive multiples of 3 is 81. determine those three numbers

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Question 894457: the sum of three consecutive multiples of 3 is 81. determine those three numbers
Answer by josgarithmetic(39621) About Me  (Show Source):
You can put this solution on YOUR website!
n is an integer.
3n, 3(n+1), 3(n+2), three consecutive multiples of 3.

3n%2B3%28n%2B1%29%2B3%28n%2B2%29=81
3%28n%2Bn%2B1%2Bn%2B2%29=81
3%283n%2B3%29=81
9%28n%2B1%29=81
n%2B1=81%2F9
n%2B1=9
highlight_green%28n=8%29

The numbers are 24, 27, 30.