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8.6 Matrices Aumentadas
https://espanol.libretexts.org/Educacion_Basica/Precalculo/08%3A_Sistemas_y_Matrices/8.06%3A_8.6_Matrices_Aumentadas
\(\left[\begin{array}{lll}1 & 1 & 1 \\ 1 & 2 & 3 \\ 2 & 3 & 4\end{array}\right] \cdot\left[\begin{array}{l}x \\ y \\ z\end{array}\right]=\left[\begin{array}{l}1 x+1 y+1 z \\ 1 x+2 y+3 z \\ 2 z+3 y+4 z... $\left[\begin{array}{lll}1 & 1 & 1 \\ 1 & 2 & 3 \\ 2 & 3 & 4\end{array}\right] \cdot\left[\begin{array}{l}x \\ y \\ z\end{array}\right]=\left[\begin{array}{l}1 x+1 y+1 z \\ 1 x+2 y+3 z \\ 2 z+3 y+4 z\end{array}\right]=\left[\begin{array}{c}9 \\ 22 \\ 31\end{array}\right]$ $\begin{aligned} 5 x+y &=6 \\ x+y &=10 \\\left[\begin{array}{ll}5 & 1 \\ 1 & 1\end{array}\right] \cdot\left[\begin{array}{l}x \\ y\end{array}\right] &=\left[\begin{array}{c}6 \\ 10\end{array}\right] \end{aligned}$

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