Question 1089671
Maybe what you solved and meant to write was
{{{system(x^2+y^2=3^2,x-y=2)}}}
That is the intersection of a larger circle (radius=3)
and the same straight line.
{{{drawing(300,300,-4,4,-4,4,
grid(0),circle(0,0,3),
line(-2,-4,4,2),circle(-0.87,-2.87,0.1),
circle(2.87,0.87,0.1)
)}}}
The solution to that system of equations has
{{{x=1 +- sqrt(14)/2}}} .