Решаем способом подстановки
[m]\left\{\begin {matrix}x+2=-x+6\\y=x+2\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}x+x=6-2\\y=x+2\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}2x=4\\y=x+2\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}x=2\\y=2+2\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}x=2\\y=4\end {matrix}\right.[/m]
О т в е т. (2;4)
[m]\left\{\begin {matrix}y=2x+3\\y=x-2\end {matrix}\right.[/m]
Решаем способом подстановки
[m]\left\{\begin {matrix}x-2=2x+3\\y=x-2\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}x-2x=3+2\\y=x-2\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}-x=5\\y=x-2\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}x=-5\\y=-5-2\end {matrix}\right.[/m]
[m]\left\{\begin {matrix}x=-5\\y=-7\end {matrix}\right.[/m]
О т в е т. (-5;-7)