b. Use approximations x₁ = 0.5 x₂= 1.1, and x3 = 0.5 1.5x₁ + x₂ + 2x3 = 2.9 6x₁ + 13x₂ + 11x3 = 23.6 26x3 = 30.8 12x₁ + 11x₂ + 2+

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