SOLUTION: The sum of two numbers is 29. Their difference is 7. What are the two numbers?

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Question 112751: The sum of two numbers is 29. Their difference is 7. What are the two numbers?
Answer by SHUgrad05(58) About Me  (Show Source):
You can put this solution on YOUR website!
Let x= the first number and y= the second number:
Set up system of equations:
x+y=29
x-y=7
2x=36
x=18
Substitute back into original equation:
18+y=29
y=11
Check:
x+y=29
18+11=29
and
x-y=7
18-11=7