Simplifying With Variables – Combining Like Terms

Combining Like Terms

For FREE access to this lesson, select your course from the categories below.

Students learn to add or subtract terms that involve variables by combining like terms. Like terms are terms with exactly the same variable factors. For example, 5x and 3x are like terms. However, 7x and 9y are not like terms, and neither are 8x and 8x^2. In the problem 2x + 3x + 4, only the 2x and 3x can be combined, because they are like terms, so the expression can be simplified to 5x + 4. Students also learn that the number in front of the variable is called the coefficient, and when there is no coefficient in front of the variable the coefficient is understood to be 1.
We help you determine the exact lessons you need.
We provide you thorough instruction of every step.
We`re by your side as you try problems yourself.
We test your knowledge until you`ve got it down.
We build your foundation if you`re struggling.
Login to your account
Enter your information to sign in
Lesson limit reached

The learning doesn't have to stop!

Become a MathHelp.com member today and receive unlimited access to lessons, grade reports, practice tests, and more!

Become a member

Already a member?

The learning doesn't have to stop!

Become a MathHelp.com member today and receive unlimited access to lessons, grade reports, reviews and more!

Become a member
Select your category
Test Prep
Tutoring
Homeschooling
Cancel
Which test are you preparing for?
Cancel
Select your level
Cancel
Select your test