stiind ca x supra y = 2 supra 3 aflati 6x + y supra x + 3y

Răspuns :

x/y=2/3 ⇒x/2=y/3=K ⇒x=2K
y=3K
6x+y/x+3y=6·2K+3K/2K+3·3K=18K+3K/2K+9K=21K/11K ⇒se taie K⇒21/11.

Sper ca te-am ajutat ! :)