Question

se stie ca x/y=2/7 calculati x+y/y

Answer 1

x=2 y=7
2+7/7=9/7
Sper sa te ajute...

Answer 2

Avem proportia:

$\dfrac{x}{y} =\dfrac{2}{7}$

Derivam aceasta proportie:

$\dfrac{x+y}{y}=\dfrac{2+7}{7} \Rightarrow \dfrac{x+y}{y} = \dfrac{9}{7}$