Question

Помогите пожалуйста, даю 20 балов!

Answer 1

$\displaystyle\bf\\\left \{ {{-x-2y+2=4} \atop {x=-8-y}} \right. \\\\\\\left \{ {{-(-8-y)-2y=4-2} \atop {x=-8-y}} \right. \\\\\\\left \{ {{8+y-2y=2} \atop {x=-8-y}} \right. \\\\\\\left \{ {{-y=2-8} \atop {x=-8-y}} \right. \\\\\\\left \{ {{y=6} \atop {x=-8-6}} \right. \\\\\\\left \{ {{y=6} \atop {x=-14}} \right. \\\\\\x= \ \boxed{-14}\\\\\\y= \ \boxed6$