Question

9) Write an expression which represents the **sum** of (7x-5y) and (-8x-8y) in
simplest terms

Answer 1

-x-13y

Explanation:

sum=add

(7x-5y)+(-8x-8y)

Combine like terms

7x+(-8x)

-1x or -x

-5y+(-8y)

-13y

-x-13y

hope this helps

Answer 2

-8y + 7x

I think, sorry if it's wrong