Question

c) Maximise 3.x1 + x2 + 4x3+ 5x4 subject to X1 + x2 + x3 + x4 < 6, 2^2 — хз + 4xд — 1, 3x1 + x3 =

6 xị unrestricted, x2, x3, x4 > 0.

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