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Ch 4: Solving Equations & Inequalities

About This Chapter

Improve your ability to solve equations and inequalities with our video lessons. This chapter covers one- and multi-step equations as well as graphs of one-variable inequalities and linear equations.

Solving Equations & Inequalities - Chapter Summary

From graphing one-variable inequalities to writing linear equations in slope-intercept form, this chapter covers the key concepts involved with solving equations and inequalities. Our fun video lessons take you through the steps of translating equations, solving systems of equations and identifying graphs of lines. Once you complete the videos, you should have the information you need to do the following:

  • Translate and solve one-step equations
  • Solve multiple-step equations
  • Graph one-variable inequalities
  • Solve simultaneous linear equations
  • Graph linear equations in standard and slope-intercept forms
  • Identify graphs of parallel and perpendicular lines

We simplify the learning process so that you can quickly strengthen your knowledge of essential math topics. With the ability to view our lessons on your mobile device, you take our professional instructors with you. They break down complex concepts and provide several practice problems with explanations. After finishing the lessons, you can take multiple-choice quizzes to test your comprehension of the material.

8 Lessons in Chapter 4: Solving Equations & Inequalities
Test your knowledge with a 30-question chapter practice test
Connections Among Proportional Relationships, Lines & Linear Equations

1. Connections Among Proportional Relationships, Lines & Linear Equations

Proportional relationships in mathematics happen when two values always change by the same multiple. If one doubles, the other doubles. This lesson will discuss the connection among proportional relationships, lines, and linear equations.

Defining, Translating, & Solving One-Step Equations

2. Defining, Translating, & Solving One-Step Equations

Watch this video lesson to learn how you can write a simple math equation when you are given a word problem. Learn how to translate words into math symbols. Learn the shortcuts to remember.

How to Solve Equations with Multiple Steps

3. How to Solve Equations with Multiple Steps

In algebra, when you want to solve an equation for a particular variable, you will need to perform multiple steps that include adding, subtracting, multiplying, and dividing. Watch this video lesson to learn the order you need to do these steps.

How to Solve and Graph One-Variable Inequalities

4. How to Solve and Graph One-Variable Inequalities

In this lesson, we will learn that solving inequalities is very similar to solving equations, but the solutions to inequalities are not so similar. Learn how to graph these solutions to better understand inequalities.

Solving Simultaneous Linear Equations

5. Solving Simultaneous Linear Equations

In this video lesson, you will learn how to solve simultaneous linear equations or a system of linear equations. Learn the steps you need to take to solve any such system using the Gaussian elimination method.

Linear Equations: Intercepts, Standard Form and Graphing

6. Linear Equations: Intercepts, Standard Form and Graphing

Do you know what to do if an equation doesn't look like y=mx+b?! If not, then this video is for you. Chances are the equation is in standard form, so we'll learn how to use standard form equations, how to graph them and why they can be helpful.

Problem solving using Linear Equations

7. Problem solving using Linear Equations

From sale prices to trip distances, many real life problems can be solved using linear equations. In this lesson, we'll practice translating word problems into linear equations, then solving the problems.

Graphs of Parallel and Perpendicular Lines in Linear Equations

8. Graphs of Parallel and Perpendicular Lines in Linear Equations

When we deal with linear equations, we sometimes come across equations that are parallel to each other or perpendicular to each other. You will see what they look like when graphed in this video lesson.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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