Solve systems of three linear equations in three variables by using gaussian elimination, technology with matrices, and substitution

How Do You Solve a System of Equations in Three Variables Using Elimination?

The elimination method can be extended from solving a system of equations with two variables to solving a system with three variables. Watch the tutorial to find out how!
What is a Matrix?

Matrices can help solve all sorts of problems! This tutorial explains what a matrix is and how to find the dimensions of a matrix.
What is a Coefficient Matrix?

You can solve a system of a equations using matrices! In order to do that, you need to create a coefficient matrix. This tutorial introduces this type of matrix and shows you how to make one!