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20-02-2024
Mathematics

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5. Solve the system \( \left\{\begin{array}{l}x_{1}+x_{2}-2 x_{3}+3 x=0 \\ 2 x_{1}+x_{2}-6 x_{3}+4 x_{4}=-1 \\ x_{1}-x_{2}-6 x_{3}-x_{4}=-2\end{array}\right. \) by Gauss-Jordan elimination.

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