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OpenStudy (anonymous):
The sum of two numbers is 57 and the difference is 9. What are the numbers? (There are two, btw).
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OpenStudy (anonymous):
Can you guide me? I have filled out a whole page.
hero (hero):
If x is one of the numbers and y is the other number, then: x + y = 57 x - y = 9 Solve the system.
OpenStudy (anonymous):
x+y=57 x-y=9 add to find x and then y
OpenStudy (anonymous):
Oh, okay that sounds pretty simple. I'll vote. Thank you. I haven't done this in a while.
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