Question

Решите систему уравнений

Answer 1

$left { {{2x+3y=1, |cdot (-3)} atop {6x-2y=14}} right. ; left { {{-6x-9y=-3} atop {6x-2y=14}} right. ; left { {{-11y=11} atop {6x-2y=14}} right. ; left { {{y=-1} atop {6x+2=14}} right. ; left { {{y=-1} atop {x=2}} right.$