Answer:
7y+4
Step-by-step explanation:
combine liked terms
Answer:
I believe the answer is the second one but take precaution i haven´t done them in a few years so be careful.
Step-by-step explanation:
Answer:
5-9i
Step-by-step explanation:
If you add the 4 and 1 you get 5, and if you add -7i and -2i since they are both negative, they stay negative, so you get -9i. So the answer is 5-9i.
Answer:
No picture
Step-by-step explanation:
From what I am looking at, it seems as if it is. :)