Question

\(\frac{3x-y}{x+y}=\frac{1}{2}\)Tìm x và y

Answer 1

\(\frac{3x-y}{x+y}=\frac{1}{2}\)

=> x + y = 2(3x - y)

=> x + y = 6x - 3y

=> 5x = 4y

=> \(\frac{x}{y}=\frac{5}{4}\)