# Linear equations and inequalities

Overview: 0 / 7 complete

2:09

One-step addition & subtraction equations

5:12

Intro to two-step equations

7:36

Why we do the same thing to both sides: Variable on both sides

10:27

One-step inequalities examples

4:32

Two-step inequalities

Contents

Solve equations by adding/subtracting numbers from both sides, or by multiplying/dividing both sides by the same number.

Learn how to solve equations like 2x+7=13 and 3(x+4)=3, which can be solved in two steps.

Learn how to solve linear equations that have the variable on both sides of the equation. For example, solve 2x+5=6x-3. Also learn how to solve linear equations with expressions in parentheses. For example, 3(x-1)=9.

Learn how to solve (mathematical) inequalities. A key concept in this tutorial is flipping the inequality sign when multiplying or dividing both sides by a negative number.

Learn how to solve more complex (mathematical) inequalities. Also learn to construct inequalities to model real-world situations.

Solve any possible linear inequality in one variable. For example, solve -3x-7<x+9.

Learn how to write proportions and how to solve proportions.