How Do You Evaluate an Algebraic Expression with Two Variables?

How Do You Evaluate an Algebraic Expression with Two Variables?

Note:

If you have an expression with two variables and you're given the values for those variables, you can plug those values into the expression and simplify to get the answer! This tutorial shows you the steps to plugging variable values into an expression and simplifying.

Keywords:

Background Tutorials

  • Evaluating Expressions

      • What is a Variable?What is a Variable?

      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!

      • What's the Order of Operations?What's the Order of Operations?

      What's the Order of Operations?

      Check out this tutorial where you'll see exactly what order you need to follow when you simplify expressions. You'll also see what happens when you don't follow these rules, and you'll find out why order of operations is so important!

      • What Are Numerical and Algebraic Expressions?What Are Numerical and Algebraic Expressions?

      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!

  • Operations With Whole Numbers

      • How Do You Subtract Whole Numbers?How Do You Subtract Whole Numbers?

      How Do You Subtract Whole Numbers?

      Subtracting numbers is easier than you might think! Watch this tutorial to see the step-by-step process of lining up the numbers vertically to subtract them.

  • Order of Operations

Further Exploration

  • Evaluating Expressions

      • How Do You Complete a Table By Plugging in Values?How Do You Complete a Table By Plugging in Values?

      How Do You Complete a Table By Plugging in Values?

      Learning how to complete a table of values is a building block of math. You can use a table to see a pattern or even make a graph! This tutorial shows you how to complete a table when you're given an expression and multiple values to plug in.