{2xy-y=5 и (x+1)(y+4)=2xy-1

Question

{2xy-y=5 и (x+1)(y+4)=2xy-1

Answer 1

2*x*y-y = 5 

(x+1)*(y+4) = 2*x*y-1

 x = -1/8, y = -4

x = 0, y = -5