Question

решите уровнение спомошью сложения
-2x=y-3
3y=5x-2

Answer 1

$\left\{{{-2x=y-3}\atop{ 3y=5x-2}} \right.$
$\left \{ { {-y=2x-3 \big | *3} \atop {3y=5x-2} } \right.$
$+\left \{ { {-3y=6x-9} \atop {3y=5x-2} } \right.\\ -3y+3y=6x+5x-9-2\\ 0=11x-11\\ x=1\\ y=\frac{5x-2}{3}=\bigg [ x=1 \bigg ] = 1\\\ \left\{ { {x=1} \atop {y=1} } \right.\\ Answer:(1;1)$