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

Practice Writing basic expressions with variables Get 5 of 7 questions to level up!

The number of questions you get right is the independent variable, and that's driving the number of points you score. So the number of points you score is the dependent variable.

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 …

Expressions are combinations of variables and numbers, while equations equate two expressions. Variables can take on different values depending on the context, and we can evaluate expressions …

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

I have this word problem for math homework and I tried solving it with the equation "65mi/h=130mi/h-3" but for some reason I keep on getting the wrong answer. Any help with this problem would be greatly …

We introduce independent and dependent variables: how to identify the independent/dependent variable in a given setting, and how we write equations with the dependent variable by itself. Created by Sal …

A single quantity should be represented by only one variable, so you should not have two different variables used for the same thing. So if a question talks about finding Andy's age, you cannot use a …

Learn to write expressions with variables in math! Discover how to represent various operations like addition, subtraction, multiplication, and division using variables.