SV #5: Unit J Concepts 3-4: Solving three- variable systems with Gaussian Elimination and Solving non-square systems (matrices)

It is very important to pay special attention to several key elements of this awesome video. First off, it is very important to pay attention to each step individually so as to understand what is being done. Second, it is important to use the correct row for each step. Also, be certain that all your work is done properly, for matrices are very complicated.