(x-4y)/y=2
x-4y=2y
x=2y+4y
x=6y.
x=6×0=0
y=x/6=0/6=0
(x²-6y²)/(x²-5xy)=0
(x²-6y²)/(x(x-5y))=0
((6y)²-6y²)/(6y(6y-5y))=0
30y²/6y=0
5y=0
y=0/5=0
x=0
