Question

Does anybody know the correct answer to this and is 100% that they do please if you I would appreciate it

Answer 1

Explanation:

sum means add

4x + 9y + 8x - 2y

12x + 7y

You are almost correct, just change your sign from a minus to a plus

Answer 2

Your correct, don’t overthink it buddy!

Explanation:

4x+9y+8x-2y

12x+7y