SV#5: unit I concept 3: solving three variable systems with Gauss Jordan elimination, matrices, row echelon form, and back substitution.

Click HERE to watch the video:)

This video deals with matrices and how they help you easily solve them in three simple steps. Then using row echelon form to help you check your answer. Then using back substitution to find your ordered pair. The viewer should pay close attention to the rows I utilized, and the way I managed to get the three zeroes and the row of ones. Another thing would be the directions on how to check your answer on the calculator. Be very careful on tiny errors like forgetting minus signs.