Question

Cho x+y/x-y=5/2

Tính x/y

Answer 1

\(\frac{x+y}{x-y}=\frac{5}{2}\)

=> 2(x + y) = 5(x - y)

=> 2x + 2y = 5x - 5y

=> 2x + 5x = 5y - 2y

=> 7x = 3y

=> \(\frac{x}{y}=\frac{7}{3}\)