Question

How do I simplify this? Combine like terms: 9c – 6d + 4c – 3d

Answer 1

do you know which ones are the like terms

Answer 2

You combine like terms by adding 9c + 4c then add -6d + -3d you should get a number for C and then for D thats simplified

Answer 3

oh, kk. Thnx

Answer 4

Welcome :3

Answer 5

Do what xBenjix said, however, don't apply subtraction and you should end up with 13c - 9d. :)
Soooo,
9c - 6d + 4c -3d
9c +4c = 13c
6d + 3d = 9d

13c - 9d is your answer.