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

Question 125690: One number is 12 more than another.The sum of the smaller number and twice the larger number is 39. Find the larger number.
Answer by MathLover1(20855) (Show Source): You can put this solution on YOUR website!
One number (let it be ) is more than another(let it be ).
assume , then
The sum of the smaller number and twice the larger number is :

since , we will have;

the larger number will be:

check:
...plug in and