You can't do algebra without working with variables, but variables can be confusing. If you've ever wondered what variables are, then this tutorial is for you!

Keywords:

definition

variables

symbols

x

y

a

Further Exploration

Apply properties of operations as strategies to add, subtract, factor, and expand linear expressions with rational coefficients.

Combining like terms together is a key part of simplifying mathematical expressions, so check out this tutorial to see how you can easily pick out like terms from an expression