Question

Help !!! Va rog!

Rezolvati sistemul de ecuatii:
{2x-y=3
{x+2y=4

Answer 1

$\left \{ {{2x-y=3} \ \ \ |2\atop {x+2y=4}} \right. \\\\ \left \{ {{4x-2y=6} \atop {x+2y=4}} \right. \\ ====== \\\\ 5x \ \ / \ \ =10 \ \ |:5 \\\\ \boxed{x=2} \\\\ 2+2y=4 \\\\ 2y=4-2 \\\\ 2y=2 \ \ \ |:2 \\\\ \boxed{y=1}$