enter your matrix of coefficients here and watch the details unfold:
http://www.gregthatcher.com/Mathematics/GaussJordan.aspx
Write the augmented matrix, and then solve the system, using Gauss Jordan elimination on the
augmented matrix.
x + 2y - z = 4
-2x + y - 4z = -6
4x - 3y + 2z = -10
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