\(\dfrac{x}{y}\)=\(\dfrac{-3}{2}\),2x-5y=-32

nhờ lần 3 nha

\(\dfrac{x}{3}\)=\(\dfrac{y}{4}\)=\(\dfrac{z}{6}\),x+2y=3z-14 

sos

\(\dfrac{x}{2}\)=\(\dfrac{y}{3}\)=\(\dfrac{z}{4}\),x+2y+20=3z

SOS giúp với