About This Lesson
http://www.freemathvideos.com In this video tutorial I will show you how to solve a system with three variables. When solving a system with three variables it is important to decide what variable you would like to solve for first. It is usually helpful to choose a variable that has a 1 as it's coefficient. We then take the equation with the variable with a coefficient of one and us elimination with the other two equations to eliminate that variable. Now we have a system of two equations with two variables. We solve using the methods we have discussed and then plug in the values of those variables back into one of the original equations to find the value of the first variable that we eliminated. I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exaclty how to solve math problems step by step. The problems are done in real time and in front of a regular classroom. These videos are intended to help you learn how to solve math problems, review how to solve a math problems, study for a test, or finish your homework.I post all of my videos on youtube but if you are looking for other ways to interact with me and my videos you can follow me on the following pages: Blogger: www.mrbrianmclogan.blogspot.comTwitter: @mrbrianmcloganFacebook: mrbrianmclogan
