Linear Algebra I - 1.7.2 - Reduced Row Echelon Form

4:15 - some examples of rref 9:03 - an example of solving a linear system using rref Support Wizards on Patreon - https://www.patreon.com/user?u=30765401&fan_landing=true ... https://www.youtube.com/watch?v=3fVgcdkR9Oo