Question

{x+y=2
2x+y+3

Answer 1

x + y = 2
therefore: y = 2 - x

Plug (2-x) for y into second equation and solve for x.

so 2x + (2-x) = 3

Then once you have x, put them into equation one.

Answer 2

x+4+=-2

Answer 3

nvm

Answer 4

y=-x+2 ,y=-2x+3