Tìm x,y ∈ \(Z\) biết :

d) \(\dfrac{4}{x}+\dfrac{2}{y}=1\)

e) \(\dfrac{1}{x}+\dfrac{1}{y}=\dfrac{1}{3}\)

Tìm x,y ∈ \(Z\) , biết :

a) \(\dfrac{x}{5}+1=\dfrac{x}{y-1}\)

b) \(\dfrac{2}{x}+\dfrac{y}{3}=\dfrac{1}{6}\)

c) \(\dfrac{x}{3}+\dfrac{1}{y+1}=\dfrac{1}{6}\)