Solve the following LPP using SimpleX method Max P = 4X₁ + 3X2 + 4X3 + 6X4 Subjected to X₁ + 2X2 + 2X3 + 4X4 2X1+ 0X2 +2X3 + X4 -3X₁-3X₂ X3 - X4 <= 80 <= 60 >= -80 Where X₁, X2, X3, X4 >= 0

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