[tex]\left \{ {{y=4-x} \atop {4x-2y=-2}} \right. \\\left \{ {{y=4-x} \atop {4x-2(4-x)=-2}} \right.\\\left \{ {{y=4-x} \atop {4x-8-2x=-2}} \right.\\\left \{ {{y=4-x} \atop {2x-8=-2}} \right.\\\\\left \{ {{y=4-x} \atop {2x=-6}} \right.\\\left \{ {{y=4-x} \atop {x=-3}} \left \{ {{y=7} \atop {x=-3}} \right.[/tex]
