Решить систему уравнения [latex] \left \{ {{7x-2y=-2} \atop {y-x=6}} \right. [/latex]

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