SOLUTION: solve the system 7x-y-z= -32 x-4y+z= -25 6x+3y-2z = -7

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Question 328900: solve the system
7x-y-z= -32
x-4y+z= -25
6x+3y-2z = -7
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
I was going to do a matrix inversion to solve the problem.
First step was to get the determinant of the matrix.
The result I got was zero which means the system is dependent.
A quick look at the row shows that row 1 is equal to the sum of row 2 and row 3.