### Home > CC3 > Chapter 2 > Lesson 2.1.5 > Problem 2-51

2-51.

Simplify the following expressions by combining like terms, if possible.

Rearrange and put like terms together.

**A arrow goes from the x, x, 2x, and negative x, to the combined result of 3 x.**Organize the terms from the greatest to the smallest power.

Follow the steps in part (a).

Are there any like terms to combine?