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Thinking algebraically about inequalities
In this tutorial you'll discover that much of the logic you've used to solve equations can also be applied to think about inequalities!
Our discussion of linear inequalities begins with multiplying and dividing by negative numbers. Listen closely for the word "swap." Super important!
In addition to solving the inequality, we'll graph the solution. Remember to swap if you mutiply both sides of the inequality by a negative number.
Inequalities are more than abstract concepts and exercises. They help solve real life problems. Here's an example.
Practice solving inequalities in one step.
Inequalities Using Addition and Subtraction
We're turning up the heat a little and asking you to help us solve a multi-step inequality problem.
Solve 2-step inequalities like 3x + 2 > 5.
Multi-Step Inequalities 2
Solve linear inequalities in multiple steps.
We'll talk you through this fun and challenging inequality problem.
Learn how to solve an inequality word problem about cell phone texting plans.
Let's tackle this word problem together. We'll interpret the information and then construct a linear inequality to solve it.
Practice constructing, interpreting, and solving linear inequalities that model real-world situations.