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

To view my video, please click on the link HERE.

In this video, you should pay special attention to how I check my answers using rref on my calculator. Also, pay attention to which 0's I found first and how I got my staircase 1's. I also forgot to mention in the video that when you are looking for the first 0 in Row 3, Term 1, you will use either Row 1 or Row 2 to help you; you must use Row 1 to find the 2nd 0 in Row 2, Term 1; and you must use Row 2 to find the last 0 in Row 3, Term 2.  Good luck!