SOLUTION: The sum of twice one number and 3 times another is 41. If the second is subtracted from the first, the difference is 8. What are the numbers?
Question 369560: The sum of twice one number and 3 times another is 41. If the second is subtracted from the first, the difference is 8. What are the numbers? Answer by acalgebra(30) (Show Source):
The easiest way to solve this is to multiply the second equation by 3:
Now, add the equations:
Combine like terms:
Divide both sides by 5 to simplify:
Now, substitute 13 for each x in one of the original equations. In this case, the second equation will be easier.
Add y to each side:
Subtract 8 from each side: