Gaussian elimination 4 linear equations where x y z w are non negative
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What is the question you're having problems with?
When I work out from the piovt rows 2, 3 & 4 work out the same and I not sure about x,y,z &w being non negative, some of my values are negative. Thanks
I mean specifically post the question you're having problems with. I can hardly guess what the problem is without seeing what the question is and what you've done. Then we'll see what we can do!
Sorry I taught I had attached file previously
You appear to be right; the solution has some values negative. This means that the routes are not all 1-way.
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