Numerical Method - Old Questions

10. Solve the following set of linear equations using Gauss Jordan method.

            x₂ + 2x₃ + 3x₄ = 9

            7x₁ + 6x₂ + 5x₃ + 4x₄ = 33

            8x₁ + 9x₂ + x₄ = 27

            2x₁ + 5x₂ + 4x₃ + 3x₄ = 23