SOLUTION: How do you solve 3 variable system equations?! Ex: 4x+2y-6y=-38, 5x-4y+z=-18, x+3y+7z=38

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Question 910605: How do you solve 3 variable system equations?!
Ex: 4x+2y-6y=-38, 5x-4y+z=-18, x+3y+7z=38
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
You can use substitution, elimination, matrix inversion, Cramer's rule, etc.