### Home > INT2 > Chapter 1 > Lesson 1.2.3 > Problem 1-55

1-55.

Simplify the following expression by combining like terms:

A

**term**is a single number, variable, or product of numbers and variables. How many terms are in the original expression? How many are in the simplified expression?group like terms:

simplify:

When variable(s) are multiplied by a number, the number is called a

**coefficient**. What is the coefficient ofin your simplified expression?