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Ch 26: 8th Grade Math: Systems of Linear Equations

About This Chapter

The lessons in this chapter cover the basics of linear equation systems, as well as more advanced topics for your eighth grader to study. At the end of every lesson, your student can take a quiz to see what information they retained.

8th Grade Math: Systems of Linear Equations - Chapter Summary

Systems of linear equations can be solved in a variety of ways, and these lessons show your students a few of them- such as by graphing, substituting, and eliminating. Your middle school student will also benefit from learning how to solve problems in two or three variables. The interactive worksheet that accompanies each lesson is accessible before, during, and after each lesson, so make sure to take advantage of this excellent resource.

Chapter Lessons and Objectives

Lesson Objective
What is a System of Equations? At the end of this lesson, students will understand what a system of equations is.
How Do I Use a System of Equations? Students learn how to change a story problem into a system of equations.
How to Solve a System of Equations by Graphing Instructors teach how to use graphs to solve a system of equations.
Solve a System of Equations Using Substitution This lesson directs students through solving equations with substitution.
Solve a System of Equations Using Elimination In this lesson, students practice solving problems with elimination.
How to Solve a System of Linear Equations in Two Variables Students study linear equations that have two variables.
How to Solve a Linear System in Three Variables With a Solution Using examples, instructors demonstrate how to solve problems in three variables.
How to Solve a Linear System in Three Variables With No or Infinite Solutions Students review how to tackle three-variable equations that may not have a clear solution.

5 Lessons in Chapter 26: 8th Grade Math: Systems of Linear Equations
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.

How Do I Use a System of Equations?

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.

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.

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

4. 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.

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

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Other Chapters

Other chapters within the 8th Grade Math: Practice & Review course

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