3-37. Consider the following set of constraints: -2x+3x23 (1) 4x1+5x210 (2) x+2x25 (3) ben 1-8 6x1 + 7x2 ≤ 3 (4) 4x1 +8x2 ≥ 5 (5) X1, X20 For each of the following problems, develop the z-row after substituting out the artificial variables: (a) Maximize z = 5x1 + 6x2 subject to (1), (3), and (4). (b) Maximize z = 2x17x2 subject to (1), (2), (4), and (5). = (c) Minimize z 3x1+6x2 subject to (3), (4), and (5). (d) Minimize z = 4x1 + 6x2 subject to (1), (2), and (5). (e) Minimize z 3x1 + 2x2 subject to (1) and (5). = заги