SOLUTION: What are the solutions to the following system of equations? {{{ y^2 = x^2 - 7 }}} {{{ x^2 + y^2 = 25 }}} I believe its 4

Algebra ->  Systems-of-equations -> SOLUTION: What are the solutions to the following system of equations? {{{ y^2 = x^2 - 7 }}} {{{ x^2 + y^2 = 25 }}} I believe its 4      Log On


   

Question 1033678: What are the solutions to the following system of equations?
+y%5E2+=+x%5E2+-+7+
+x%5E2+%2B+y%5E2+=+25+

I believe its 4
Answer by jorel555(1290) About Me  (Show Source):
You can put this solution on YOUR website!
y^2=x^2-7
x^2-y^=7
x^2+y^2=25;adding them, we get:
2x^2=32
x^2=16
x=4
y=3!!!!!