SOLUTION: Find two numbers whose sum is 55 and whose difference is 13. (we will call the numbers xandy)

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Question 201663: Find two numbers whose sum is 55 and whose difference is 13. (we will call the numbers xandy)
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
x+y=55
x-y=13
x=y+13
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y+13+y=55
2y+13=55
2y=42
y=21
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x-21=13
x=34
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34-21=13
34+21=55