3-38. Consider the following set of constraints: X1 + x2 + x3 = 7 2x1 - 5x2 + x3 > 10 X1, X2, X3 2 0 Solve the problem for each of the following objective functions: (c) Maximize z = x1 + 2x2 + x3. (d) Minimize z = 4x1 8x2 + 3x3. -

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