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OpenStudy (anonymous):
Solve x^2+y^2-18y+56=0 x^2+y^2+9x-15y+74=0 after eliminating and factoring you get 9x+3y+18=0, what do i do from here?
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OpenStudy (dumbcow):
you can solve for y --> y = -3x -6 Then substitute it back in for y to solve for x --> x^2 + (-3x-6)^2 -18(-3x-6) +56 = 0
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