maximize 2x1-3x2+3x subject to x1+3 x2 =7 x1-2x2 2x2 ≤4 X1:X2.X2 0. maximize 2x1 -3x2+3x subject to x1+x2 -x2 ≤7 X1+x2 x ≥7 x1-2x2 2x2 ≤ 4 X1.x2.x2 0 maximize CTX maximize 2x1-3x2+3x3 subject to x1+x2 3≤ > subject to -x1-x2 X3 ≤-7 Ax≤ b 2x1-2x2 +2x3 4 0. x≥ 0. X1,X2,X3