Question: 121 of 838 3.3 The Simplex Method 101 4. Consider the following LP: Maximize z = x1 subject to 5x1 + x2 6x1 3x1 +

121 of 838 3.3 The Simplex Method 101 4. Consider the following LP: Maximize z = x1 subject to 5x1 + x2 6x1 3x1 + x4 = 3 X1, X3, X3, X4 20 (a) Solve the problem by inspection (do not use the Gauss-Jordan row operations), and justify the answer in terms of the basic solutions of the simplex method. (6) Repeat (a) assuming that the objective function calls for minimizing z = xj. + x3

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