Answer:
B (4, 9)
Step-by-step explanation:
Isolate one of the variable on the first equation
5 = -x + y
turn to
x = y - 5
Then insert this into the second equation
3 = 3(y - 5) - y
Simplify-
3 = 3y - 15 - y
3 = 2y - 15
Add 15 to both sides
18 = 2y
Divide by 2
9 = y
knowing y = 9 you can assume that -
(x, 9)
This means the only possible answer is B
