SOLUTION: I need help solving these system of equations: x^2+y^2=9 y=x+3 AND x^2-y^2=9 2x-y=6

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Question 311834: I need help solving these system of equations:
x^2+y^2=9
y=x+3
AND
x^2-y^2=9
2x-y=6
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
x^2+y^2=9
y=x+3
Sub for y in the 1st eqn
x%5E2+%2B+%28x%2B3%29%5E2+=+9
x%5E2+%2B+x%5E2+%2B+6x+%2B+9+=+9
2x%5E2+%2B+6x+=+0
x = 0, x = -3
---------------
AND
x^2-y^2=9
2x-y=6 --> y = 2x-6
Do it like the 1st one.