Answer:what equation?
Step-by-step explanation:
Answer:
u need to get the y on one side by it self
subtract 1/3 y from both sides then subtract x from both sides
-2x + y = 9
-4x - y = 9
----------------- +
-6x = 18
x = -3
-2(-3) + y = 9
6 + y = 9
y = 3
