Use Gaussian-Jordan eliminaltion to solve the linear system x₁ + x₂ + x3 + x₁ = 1 2x1 +4x2+6x3 + 8x4 x1 + 3x2 + 6x3 + 10x4 x1 +4x2+ 10x3 + 20x4 = 2 = 4 = 3

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