Mathematics, 20.09.2019 22:20, Evilgus4846
For the following linear system, put the augmented coefficient matrix into reduced row-echelon form.
2x1 + 3x2 − x3 = 14
x1 + 2x2 + x3 = 4
5x1 + 9x2 + 2x3 = 7
1 0 -5 16
0 1 3 -6
0 0 0 -19
incorrect
Answers: 2
![\left[\begin{array}{ccc|c}2&3&-1&14\\1&2&1&4\\5&9&2&7\end{array}\right]](/tpl/images/0247/5824/7e02f.png)
![\left[\begin{array}{ccc|c}1&2&1&4\\2&3&-1&14\\5&9&2&7\end{array}\right]](/tpl/images/0247/5824/34934.png)
![\left[\begin{array}{ccc|c}1&2&1&4\\0&-1&-3&6\\0&-1&-3&-13\end{array}\right]](/tpl/images/0247/5824/bd4d3.png)
![\left[\begin{array}{ccc|c}1&2&1&4\\0&1&3&-6\\0&-1&-3&-13\end{array}\right]](/tpl/images/0247/5824/d667a.png)
![\left[\begin{array}{ccc|c}1&2&1&4\\0&1&3&-6\\0&0&0&-19\end{array}\right]](/tpl/images/0247/5824/017b7.png)
![\left[\begin{array}{ccc|c}1&2&1&4\\0&1&3&-6\\0&0&0&1\end{array}\right]](/tpl/images/0247/5824/e58e8.png)
![\left[\begin{array}{ccc|c}1&2&1&0\\0&1&3&0\\0&0&0&1\end{array}\right]](/tpl/images/0247/5824/3cb58.png)
![\left[\begin{array}{ccc|c}1&0&-5&0\\0&1&3&0\\0&0&0&1\end{array}\right]](/tpl/images/0247/5824/2c0e0.png)
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For the following linear system, put the augmented coefficient matrix into reduced row-echelon form....
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