Variables in math are symbols, often letters, that represent different values in various situations. They help us understand and solve problems with changing values.

Evaluating expressions with multiple variables: fractions & decimals Evaluating expressions with variables word problems

A variable is a symbol that represents a value, often one that changes, like how long you've been awake. Learn ways that we can change an expression's value (such as by changing the values of its …

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We will now equate two algebraic expressions and think about how it might constrain what value the variables can take on. The algebraic manipulation you learn here really is the heart of algebra.

Equations with variables on both sides: decimals & fractions Get 3 of 4 questions to level up!

Overview and history of algebra Introduction to variables Substitution and evaluating expressions Evaluating expressions word problems Writing algebraic expressions introduction Introduction to …

Practice Up next for you: Solutions to 2-variable equations Get 3 of 4 questions to level up!

A dependent variable is what you are solving for, or the variable that depends on something. An independent variable is in the equation for a certain amount of the dependent.