Question

Решите систему 2x-y=3
6x+2y=4

Answer 1

$left { {2x-y=3} atop {6x+2y=4}} right.$
$left { {{-6x+3y=-9} atop {6x+2y=4}} right.$
$left { {{5y=-5} atop {6x+2y=4}} right.$
$left { {{y=-1} atop {6x+2y=4}} right.$
$left { {{y=-1} atop {6x=4+2}} right.$
$left { {{y=-1} atop {6x=6}} right.$
$left { {{y=-1} atop {x=1}} right.$
Ответ:(1;-1).