2. Consider the following problem. Maxmize Z = x1 - x2 + 2x3 subject to 2x1 - 2x2 + 3x3 35 X1 + X2 - X3 3 3 x1 - x2 + x3 = 2 and Xi 20 X2 20, X3 20 Let X4,X5, and xo denote the slack variables for the respective constraints. After you apply the simplex method, a portion of the final simplex tableau is as follows: Coefficient of: Basic Variable RHS z X1 X2 X3 X4 Z 1 X2 0 X5 X6 1 1 0 1 3 0 0 1 1 1 20 X6 0 0 (a) Use the fundamental insight to identify the missing numbers in the final simplex tableau. Show your calculations. (b) Identify the defining equations of the CPF solution corresponding to the optimal BF solution in the final simplex tableau