Question

Помогите решить систему
{х-1/у-1 =х/у
{х-у+1=0

Answer 1

X=1 -y
(1-y-1)/y -1=1-y /y
-y^2=(1-y)(y-1)
2y -y^2-1=-y^2
2y =1
Y=1/2
X=1/2