If one uses the method of artificial variables in a
Chapter 22, Problem 22.4(choose chapter or problem)
If one uses the method of artificial variables in a problem without solution. this nonexistence will become apparent by the fact that one cannot get rid of the artificial variable. TIIustrate this by trying to maximize f = 2Xl + X2 subject to Xl ;;; 0, X2 ;;; 0, 2Xl + X2 ::0; 2, Xl + 2X2 ;;; 6, Xl + X2 ~ 4.
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