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

Algebra ->  Coordinate Systems and Linear Equations -> 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      Log On


   



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) About Me  (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.