(3m + 3) +(-4m + 3) pl helll

(08.01)consider the following pair of equations: x + y = −2 y = 2x + 10 if the two equations are graphed, at what point do the lines representing the two equations intersect? (−4, 2) (4, 2) (−2, 4) (2, 4)

What can you determine about the solutions of this system

Which of the following is not a subset of {1,2,3}?