CBSE · Class 6-12

Back to Expressions using Letter-Numbers

Class 7 · Ganita Prakash · Unit 4: Expressions using Letter-Numbers

Combining Like Terms

Lesson 3 of 3

4x + 2x = 6x

. But

3x + 5y

cannot combine — different variables.

2x^2 + 3x^2 = 5x^2

combines because both have

x^2

.

Terms and Coefficients

Try the practice skills

All lessons in this unit