[tex]\it Not\breve am\ numerele\ cu\ x,\ y,\ z.\ \ \ x+y+z=180\ \ \ \ \ (*)\\ \\ \{x,\ y,\ z\}\ d.\ p.\ \{2,\ 3,\ 4\} \Rightarrow \dfrac{x}{2}=\dfrac{y}{3}=\dfrac{z}{4}=\dfrac{x+y+z}{2+3+4}\stackrel{(*)}{=}\ \dfrac{180}{9}=20 \Rightarrow \\ \\ \\ \Rightarrow x=2\cdot20=40;\ \ \ y=3\cdot20=60;\ \ \ z=4\cdot20=80[/tex]
