=>x(y+1)-2y-2+5=0
=>(x-2)(y+1)=-5
=>\(\left(x-2;y+1\right)\in\left\{\left(1;-5\right);\left(-5;1\right);\left(-1;5\right);\left(5;-1\right)\right\}\)
=>\(\left(x,y\right)\in\left\{\left(3;-6\right);\left(-3;0\right);\left(1;4\right);\left(7;-2\right)\right\}\)