Answer:
4
Explanation:
You need to plug in -8 for x resulting in -(-8) - 4y = 16
Then you would multiply the negative by 8 giving you 8-4y=16 because a negative multiplied by a negative is a positive. Then you need to subtract 8 from both sides of thew equation giving you 4y = 16 then you divide each side of the equation by 4 givng you y = 4