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

[latex] \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. [/latex]