Solve - 2x + y = 11 and x - y = - 4

x - y = - 4

x - y+y = - 4+y

x= - 4+y

- 2x + y = 11

- 2(- 4+y) + y = 11

- 2(- 4) (-2)(+y) + y = 11

8-2y+y=11

8-y=11

8-y-8=11-8

-y=3

-y/-1=3/-1

y=-3

x= - 4+y

x= - 4+-3

x=-7