Question

{(х+1)²+(у-1)²=9
у+1=х

Answer 1

y=x-1
x^2-2x+1+x^2-4x+4=9
x^2-6x=4
(x-3)^2=13
x=3+sqrt(13)  или  x=3-sqrt(13)
y=2+sqrt(13)  или  y=2-sqrt(13)