Question: 4. Solve the following linear program using first the Big-M method and then the two-phase simplex method. max st 2x1 + 5x2 + 3x3 x2x

4. Solve the following linear program using first the Big-M method and then the two-phase simplex method. max st 2x1 + 5x2 + 3x3 x2x + x3 20 - x + 4x + x3 = 20 X 0, X 0, X3 0

4. Solve the following linear program using first the Big-M method and then the two-phase simplex method. \\[ \\begin{array}{ll} \\max & 2 x_{1}+5 x_{2}+3 x_{3} \\\\ \\text { st } & x_{1}-2 x_{2}+x_{3} \\geq 20 \\\\ & x_{1}+4 x_{2}+x_{3}=20 \\\\ & x_{1} \\geq 0, x_{2} \\geq 0, x_{3} \\geq 0 \\end{array} \\]

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