SOLUTION: One number is 12 more than another. The sum of the smaller and twice the larger is 39. Find the larger number.

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Question 121294: One number is 12 more than another. The sum of the smaller and twice the larger is 39. Find the larger number.
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!
If the larger number is n, then the smaller is n - 12. %28n-12%29%2B2n=39

%28n-12%29%2B2n=39

3n-12=39

3n=39%2B12=51

n=17

Check: if the larger is 17, the smaller must be 17 - 12 = 5. Twice the larger is 34 plus 5 is 39 -- checks.