Example doing Gauss-Jordan elimination on a 3 by 4 augmented matrix.

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0:00 Introduction
0:20 Introduce example matrix
1:06 Making row 1, column 1 equal 1
2:05 Making row 2, column 1 equal 0
3:15 Making row 3, column 1 equal 0
4:29 Making row 2, column 2 equal 1
4:57 Making row 3, column 2 equal 0
5:29 Making row 3, column 3 equal 1
6:03 Making row 2, column 3 equal 0
6:37 Making row 1, column 3 equal 0
7:15 Making row 1, column 2 equal 0
7:37 Getting the solution from the final matr