Posted by **.** on Sunday, November 22, 2009 at 12:29pm.

How would you solve this problem?:

x2 + y2 = 25

x2 - y = 5

You have to solve for one variable either by substitution or elimination method and then use the answer to plug it in one of the equations to get the other variable. I've been at this problem for 30 minutes now and have given up!

Thanks! :)

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