Answer: 11x-12
Explanation:
(-5x)-(20)+(8)+(16x)
It would be easier to rearrange this equation by degree (ie ax^2, ax^1, a)
(16x)-(5x)-(20)+(8)
You cannot subtract ax^1 by a, but you can subtract ax^1 by ax^1 (16x-5x)
16x-5x= 11x
We can also subtract a by a (-20+8)
-20+8= -12
Remember your positive and negative signs
Answer: 11x-12