SOLUTION: solve the system 3x-2y-z=1 2x-2y =4 2x -2z=-12

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Question 250053: solve the system
3x-2y-z=1
2x-2y =4
2x -2z=-12
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.3x-2y-z=1
2.2x-2y++=4
3.2x+++-2z=-12
From 2,
2y=2x-4
From 3,
2z=2x%2B12
z=x%2B6
Substitute into 1 and solve for x.
1.3x-2y-z=1
3x-%282x-4%29-%28x%2B6%29=1
3x-2x-x%2B4-6=1
-2=1
Since this leads to an inconsistency, there is no solution.