Question

Решите систему уравнений:
{2х-у=-1
{-4х+3у=-3

Answer 1

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