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
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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