Equations & inequalities introduction

Learn about equations and inequalities that have variables in them. These tutorials focus on solving equations and understanding solutions to inequalities.

A high-level, conceptual walk-through of what an equation represents and why we do the same thing to both sides of it

Let's use our algebra tools to solve a problem of earth-shattering importance: which Super Yoga plan is the best value! In this word problem, you'll put to practice your knowledge of variables, substitution, and one-step equations.

Algebraic inequalities (inequalities with variables) are useful for describing real-world situations. Learn how to write inequalities and graph them on the number line.

Sometimes one variable depends on another. For example, the amount of money you make might depend on how many hours you work.