SOLUTION: six times the sum of a number and 15 Is 99 more than three times the number. What is the number?

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Question 699909: six times the sum of a number and 15 Is 99 more than three times the number. What is the number?
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
6(n+15)=3n+99
6n+90=3n+99
6n-3n=99-90
3n=9
n=9/3
n=3