Copyright

Ch 5: Chapter 5: Systems of Equations and Inequalities

About This Chapter

The Systems of Equations and Inequalities chapter of this Holt McDougal Algebra I course helps students learn essential algebra lessons about systems of equations and inequalities. Each of these simple and fun video lessons is about five minutes long and is sequenced to align with the Systems of Equations and Inequalities textbook chapter.

How It Works:

  • Find the lesson within this chapter that corresponds to what you're studying in the Science of Biology chapter of your textbook.
  • Watch fun videos that cover the mathematical concepts you need to learn or review.
  • Complete the quiz after watching each video lesson to test your understanding.
  • If you need additional help, rewatch the videos until you've mastered the material, or submit a question for one of our instructors.the videos until you've mastered the material or submit a question for one of our instructors.

Chapter Topics

You'll learn all of the algebra topics covered in the textbook chapter, including:

  • Graphing to solve systems of equations
  • Using substitution to solve systems of linear equations
  • Solving systems of equations by elimination
  • Working with linear systems of equations with three variables
  • Finding solutions to linear inequalities or systems of linear inequalities

Holt McDougal Algebra I is a registered trademark of Houghton Mifflin Harcourt, which is not affiliated with Study.com.

5 Lessons in Chapter 5: Chapter 5: Systems of Equations and Inequalities
Test your knowledge with a 30-question chapter practice test
What is a System of Equations?

1. What is a System of Equations?

So what happens if we want to compare more than one equation? Welcome to a 'system' of equations! Learn what one is, how to solve them and when they come up in real life.

Solving Problems Involving Systems of Equations

2. Solving Problems Involving Systems of Equations

Did you ever encounter a problem where you seem to have lots of information, but still have a couple of critical numbers missing? In this lesson, we'll practice solving word problems that require us to set up systems of equations.

How to Solve a System of Linear Equations in Two Variables

3. How to Solve a System of Linear Equations in Two Variables

Watch this video lesson to learn how you can solve a system of linear equations in two variables by using the substitution method. Learn how easy it is to use on any linear system in two variables.

Solving a System of Equations with Two Unknowns

4. Solving a System of Equations with Two Unknowns

When you have two variables and two equations, is solving the problem four times as hard? No! Not when you use the substitution or elimination method to solve systems of equations. We'll practice both in this lesson.

How to Solve a Linear System in Three Variables With No or Infinite Solutions

5. How to Solve a Linear System in Three Variables With No or Infinite Solutions

In this video lesson, you will learn to recognize when a linear system has no solution or an infinite number of solutions. You will also learn how to go about solving each of these types of systems.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
Not Taken
Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
Not Taken

Earning College Credit

Did you know… We have over 200 college courses that prepare you to earn credit by exam that is accepted by over 1,500 colleges and universities. You can test out of the first two years of college and save thousands off your degree. Anyone can earn credit-by-exam regardless of age or education level.

To learn more, visit our Earning Credit Page

Transferring credit to the school of your choice

Not sure what college you want to attend yet? Study.com has thousands of articles about every imaginable degree, area of study and career path that can help you find the school that's right for you.

Support