y=0" alt=" \left \{ {{\frac{2-x}{3}-\frac{y+6}{6}=0} \atop {x+2y=-1}} \right. \\
\left \{ {{\frac{4-2x-y-6}{6}=0} \atop {x+2y=-1}} \right. \\
\left \{ {{-2x-y-2=0} \atop {x+2y=-1}} \right. \\
\left \{ {{-2x-y=2} \atop {x+2y=-1}} \right. \ \ \ \ (*2)\\
\left \{ {{-4x-2y=4} \atop {x+2y=-1}} \right. \ \ \ \ (+)\\
-3x=3\\
x=-1\\
-1+2y=-1 => y=0" align="absmiddle" class="latex-formula">
Ответ: х=-1; у=0