# Ch 9: Solving Systems of Linear Equations

View our lessons to find out what a system of equations is and how it's used. See the methodology for solving several types of systems of linear equations and practice with real problems.

## Solving Systems of Linear Equations - Chapter Summary

These lessons explain what a system of equations is and how it is used. You'll be briefed on the strategies for solving systems of linear equations in two and three variables as well as solving a system of equations with two unknowns. At the end of this chapter, you should be able to:

• Define a system of equations
• Explain the role of a system of equations
• Solve a system of linear equations in two variables
• Solve a linear system in three variables with a solution or with no or infinite solutions
• Use different methods to solve a system of equations with two unknowns
• Practice solving problems with systems of equations

These lessons are designed and taught by expert instructors. Self-assessment quizzes at the end of each lesson let you test what you've learned and see where you need further review. The jump feature in the timeline allows you to quickly find certain areas of each lesson for re-watching. The lessons also include written transcripts with key words and concepts highlighted.

7 Lessons in Chapter 9: Solving Systems of Linear Equations
Test your knowledge with a 30-question chapter practice test
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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