# Ch 29: 6th-8th Grade Algebra: Systems of Linear Equations

### About This Chapter

The amusing video lessons in this chapter on systems of linear equations teach 6th-8th graders how to use known and unknown variables to find solutions to mathematical problems. Test your students by having them take lesson quizzes.

## Systems of Linear Equations - Chapter Summary

Use the video lessons in this chapter to help your elementary and middle school students learn more about graphing a system of equations. Each lesson is presented through a short and amusing video which discusses a topics like solving equations through the process of substitution, elimination, and graphing. Furthermore, students can apply their math skills to real-world problems as they learn to write sample equations. You are sure to find the lesson transcripts useful for addressing key topics, and you can discover how much your elementary and middle school students have learned by having them complete the multiple-choice quizzes at the end of every lesson.

## Chapter Lessons and Objectives

Lesson Objectives
What is a System of Equations? Go over a system of equations and see where they are found found in everyday life, discover how to graph these equations, and practice graphing intersection points.
How Do I Use a System of Equations? Apply the substitution method to problems, and translate stories into solvable equations.
How to Solve a System of Equations by Graphing Describe how to use graphing to find the answer for a system of equations.
How to Solve a System of Equations by Substitution Establish the steps for using substitution to find the solution to a system of equations.
How to Solve a System of Equations by Elimination Point out techniques for solving a system of equations through the use of elimination.
How to Solve a System of Linear Equations in Two Variables Within two variables, go over the process of solving a linear system.
How to Solve a Linear System in Three Variables With a Solution Find a solution to a linear system within three variables.
How to Solve a Linear System in Three Variables With No or Infinite Solutions Given an infinite amount of solutions or no solutions, show how to find the answer for a linear system in three variables.

Final Exam
Chapter Exam

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### Other Chapters

Other chapters within the 6th-8th Grade Math: Practice & Review course

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