Answer:
x = - 1, y = 4
Step-by-step explanation:
A. We are going to use elimination method because we have +2y and -2y, and when we add these equations +2y and -2y are going to be eliminated.
B.
x + 2y = 7
+ 3x - 2y = -11
4x = - 4
x = - 1
x + 2y = 7
-1 + 2y = 7
2y = 8
y = 4
