SOLUTION: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. What is the larger number? I HATE word problems just looking at this stuff gi

Question 316403: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. What is the larger number? I HATE word problems just looking at this stuff gives me a headache I don't know where to start. I would greatly appreciate any help I can get.
Thanks again
Chris Hubbs
Answer by Jstrasner(112) (Show Source): You can put this solution on YOUR website!
hey,
So for this one, we need to write down what we know:
n + 12 = n(2)
n + 2*n(2) = 39
We substitute n(2) into the second equation:
n + 2*(n + 12) = 39
n + 2n + 24 = 39
3n + 24 = 39
3n = 15
n = 5
5 + 12 = n(2)
Therefore:
The big number is 17

I hope this helps!
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