SV#5: Unit J Concept 3-4: Solving three-variable systems with Gaussian Elimination

Pay attention to the vocabulary because they will be used later on. You should also pay attention to how i solved for the Row-Echelon Form. Another thing to look out for is the correct method of using rref( to check your answer and the identity of an inconsistent system. 

My screen-recorder only lets me record for 5 minutes each video so there are two videos to watch... Thanks for your patience! Goodnight.