[tex]x\to nr. \ bluzelor \\ y\to nr. \ rochiilor \\\\ x+y=248 \\\\ x+13=\frac{y}{2} \\\\ x=\frac{y}{2}-13^{(2} \\\\ \boxed{x=\frac{y-26}{2}} \\\\\\ \frac{y-26}{2}+y^{(2}=248^{(2} \\\\ y-26+2y=496 \\\\ 3y=496+26 \\\\ 3y=522 \ |:3 \\\\ \boxed{\boxed{y=174}} \\\\ x= \frac{174-26}{2} \\\\ x=\frac{148}{2} \\\\ \boxed{\boxed{x=74}}[/tex]
