Are there any like terms that we can combine?

It looks like it. All three terms have the same variable part, c.

*Combine like terms

The sum of 9 times a number and 5, subtracted from 4 times a number.

Writing this as an algebraic expression we get:

Last revised on July 26, 2011 by Kim Seward. All contents copyright (C) 2001 - 2011, WTAMU and Kim Seward. All rights reserved.