# Equations & inequalities introduction

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

## Algebraic equations basics

Explore what it means for equations with variables (algebraic equations) to be solved.

## One-step equations intuition

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

## One-step addition & subtraction equations

Solve equations by adding and subtracting numbers from both sides.

## One-step multiplication and division equations

Solve equations by multiplying and dividing numbers from both sides.

## One-step equation word problems

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.

## Finding mistakes in one-step equations

Practice spotting the mistake in someone else's work as they attempt to solve one-step equations.

## Intro to inequalities with variables

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

## Dependent and independent variables

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