Question

−5.55− 8.55c+ 4.35c combine like terms to simplify the expression

Answer 1

-5.55 - 8.55c + 4.35c

-8.55c + 4.35c = -4.2c

-5.55 - 4.2c is the answer. 

Answer 2

First, we should organize the expression in descending order:
4.35c - 8.55c - 5.55
4.35c - 8.55c= -4.2c
So the simplified expression is:
-4.2c - 5.55
I hope this has helped you, if not you may ask me the question again and clarify.