In this lesson, Julie Harland teaches how to solve a system of three linear equations with three variables using the addition (elimination) method. Students will learn how to eliminate one variable at a time and solve the system by working with two different equations. By following the step-by-step process and checking their answers, students will be able to solve these complex problems and gain a deeper understanding of linear systems with multiple variables.
This video shows how to solve a system of 3 three linear equations in 3 variables using the addition (elimination) method. The same problem is solved in the second part of this series using the substitution method.
More free YouTube videos by Julie Harland are organized at http://yourmathgal.com