WEST Middle Grades Math: Systems of Linear Equations - Videos & Lessons

About This Chapter

The state of Washington has begun using the National Evaluation Series (NES) examination instead of the WEST Middle Grades Math examination. Review linear equation systems by studying this chapter's videos, then demonstrate what you know on the test.

WEST Middle Grades Math: Systems of Linear Equations - Chapter Summary

Review the rules for building, graphing and solving systems of equations by watching the video lessons in this chapter. You'll discover concepts you're already familiar with and you may learn something new as you prepare to pass the WEST Middle Grades Math examination. Your exploration of this chapter's topics could help you to:

Compare and contrast several equations
Use the substitution, graphing or elimination methods to solve equations
Review the rules for solving equations in two variables
Learn to solve equations in three variables with solutions, no solutions or infinite solutions

Use the tips, strategies and information provided by the video instructors to prepare for the WEST Middle Grades Math examination. The videos are fun to watch as well as easy to follow. You can use the video tags to go over specific parts of the lessons or consult the transcripts that are included in the chapter. Study as your schedule allows, then take the self-assessment quizzes that follow each lesson.

8 Lessons in Chapter 34: WEST Middle Grades Math: Systems of Linear Equations

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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.

2. How Do I Use a System of Equations?

There are a few classic algebra word problems, such as the one about two trains traveling at different speeds. In this lesson, you'll learn how to take a word problem and convert it into the system of equations that will allow you to find the answer using either substitution or elimination.

3. How to Solve a System of Equations by Graphing

Watch this video lesson to learn how you can solve a system of equations by graphing. Learn when you have a solution and when you don't. Also learn how easy the solution is to spot.

4. How to Solve a System of Equations by Substitution

Watch this video lesson to learn how you can solve a system of equations by using the substitution method. Learn the key to using the substitution method and take a quiz to practice your new skills.

5. How to Solve a System of Equations by Elimination

After watching this video lesson, you will have learned how to solve a system of equations by using the elimination method. You will learn what is being eliminated and how to do it so that you end with your solution.

6. 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.

7. How to Solve a Linear System in Three Variables With a Solution

After watching this video lesson, you will be able to solve a linear system in three variables using the elimination method. Learn the simple operations that are needed to solve your system.

8. 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.

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Practice Final Exam

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Visit the WEST Middle Grades Mathematics (203): Practice & Study Guide page to learn more.

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