maximize 2x1- 3x2+3x5 subject to x1+ =7 X1- 2x2 2x3 ≤4 x1.X2.x2 ≥0 maximize 2x1- 3x2 3x2 subject to X1+ 3 6 7 x1+ ≥ 7 x1- 2x2 2x2 ≤ 4 x1.x2.x2 0 maximize CTx maximize 2x1 3x2 3x3 subject to x1+ X2 x3≤ 7 subject to Ax b -x1- X2 +x3 ≤ -7 ≤ x1-2x2+ 2x3 ≤ 4 ≥ 0. X1,X2,X3 ≥ 0