Question 139467
x^2+y^2=25
5=x+y
x=5-y
(5-y)^2+y^2=25
25-10y+y^2+y^2=25
2y^2-10y=0
2y(y-5)=0
2y=0
y=0 answer.
y-5=0
y=5 answer.
x=5-0
x=5 answer.
x=5-5
y=0 answer.