Răspuns :
[tex]x+y=150 \Longrightarrow x=150-y \\
3x=2y \\
3(150-y)=2y \\
450-3y=2y \\
5y=450 \\
\boxed{y=90} \\
x=150-90 \\
\boxed{x=60}[/tex]
x+y =150=>y=150-x
3x=2y=>3x=2(150-x)=>3x=300-2x=>5x=300=>x=60y=150-60=>y=90
3x=2y=>3x=2(150-x)=>3x=300-2x=>5x=300=>x=60y=150-60=>y=90