SOLUTION: Second attempt at this problem. I tried 2 different methods, by matrices and elimination and got strange answers each time. In desperate need of help, I am so frustrated! thank you

SOLUTION: Second attempt at this problem. I tried 2 different methods, by matrices and elimination and got strange answers each time. In desperate need of help, I am so frustrated! thank you

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Question 1008727: Second attempt at this problem. I tried 2 different methods, by matrices and elimination and got strange answers each time. In desperate need of help, I am so frustrated! thank you.

x + y - z + 2w = 5
-3x + 7y -5z +4w = 13
2x -3y +2z -w = -4
x -4y +3z -3w =-9
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
I have a feeling this is not copied correctly. I used software to solve it and could not get a finite solution either.
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