{х-у=2
{ х-у^2=2
x=y+2
y+2-y^2=2
y-y^2=0
y(1-y)=0
{y=0, х=2 или 1-y=0
{y=1, x=3
ответ:(2;0), (3;1)
x-y=2
x-y^2=2
x=2+y
2+y-y^2=2
-y^2+y=0
y^2-y=0
y(y-1)=0
y=0
y=1
x=2+y=2; x=3
ответ: y=0, x=2; y=1, x=3
{х-у=2
{ х-у^2=2
x=y+2
y+2-y^2=2
y-y^2=0
y(1-y)=0
{y=0, х=2 или 1-y=0
{y=1, x=3
ответ:(2;0), (3;1)
x-y=2
x-y^2=2
x=2+y
2+y-y^2=2
-y^2+y=0
y^2-y=0
y(y-1)=0
y=0
y=1
x=2+y=2; x=3
ответ: y=0, x=2; y=1, x=3