# linear algebra

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use a computer software or graphing utility to solve the system of linear equation.
x₁+0.5x₂+0.33x₃+0.25x₄=1.1
0.5x₁+0.33x₂+0.25x₃+0.21x₄=1.2
0.33x₁+0.25x₂+0.2x₃+0.17x₄=1.3
0.25x₁+0.2x₂+0.17x₃+0.14x₄=1.4

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