Gaussian Elimination & Row Echelon Form

Learn the Gaussian elimination method for solving systems of linear equations in this 19-minute precalculus video tutorial. Discover how to convert equations into augmented matrices, apply elementary row operations, and transform them into row echelon form. Master the technique of back substitution to solve 3x3 systems with three variables. Benefit from numerous examples and practice problems to reinforce your understanding of this fundamental mathematical concept.

Introduction
Example
Matrix Row Operation
Row Echelon Form
Example Problem