Question

biết x/y=2 và y khác 0. Khi đó (2x+y)/(x-y)=?

Answer 1

\(x=2y\Rightarrow\frac{2x+y}{x-y}=\frac{4y+y}{2y-y}=\frac{5y}{y}=5\)

Answer 2

x/y=2

=> x=2y

=> \(\frac{2x+y}{x-y}=\frac{2.2y+y}{2y-y}=\frac{4y+y}{y}=\frac{5y}{y}=5\)

Answer 3

x=2y=>2x+y/x-y=4y+y/2y-y=5y/y=5

Answer 4

Ta có: \(\frac{x}{y}=2\Rightarrow x=2y\)

Ta có:

\(\frac{2x+y}{x-y}=\frac{2\left(2y\right)+y}{2y-y}=\frac{4y+y}{y}=\frac{5y}{y}=5\)

Tick nha