Step-by-step explanation:

What Are Numerical and Algebraic Expressions?

An expression is just a mathematical phrase. In this TUTORIAL, you'll learn about two popular types of expressions: numerical and algebraic expressions. A numerical expression contains numbers and operations. An algebraic expression is almost exactly the same EXCEPT it also contains variables. Check out this tutorial to learn about these two popular kinds of expressions!

Evaluate expressions at specific values of their variables. Include expressions that arise from formulas used in real-world problems. Perform arithmetic operations, including those involving whole-number exponents, in the conventional order when there are no parentheses to specify a particular order (Order of Operations).

How Do You Evaluate an Algebraic Expression?

Plugging variables into an expression is essential for solving many algebra problems. See how to plug in VARIABLE values by WATCHING this tutorial.

What is a Variable?

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!