answersLogoWhite

0


Best Answer

In this case you just add them together to make 9x.

User Avatar

Wiki User

14y ago
This answer is:
User Avatar
More answers
User Avatar

Anonymous

Lvl 1
4y ago

8x

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: How do you simplify 4x plus 5x?
Write your answer...
Submit
Still have questions?
magnify glass
imp