Question

va rog dau coroană ​

Answer 1

Răspuns:

x=3

y=1

Deci

$\frac{3 + 1}{3 - 1} = \frac{4}{2 } = 2$

Answer 2

$\it \dfrac{y}{x}=\dfrac{1}{3} \Rightarrow x=3y\\ \\ \\ \dfrac{x+y}{x-y}=\dfrac{3y+y}{3y-y}=\dfrac{4y}{2y}=2$