Question

решите систему линейных уравнений у-3=4х+8 2х+у=-1

Answer 1

$left { {{y-3=4x+8} atop {2x+y=-1}} right. left { {{y-3=4x+8} atop {y=-1 - 2x}} right. left { {{-1-2x-3=4x+8} atop {y=-1 - 2x}} right. left { {{x=-2} atop {y=3}} right.$