Mathematics, 20.09.2019 22:10 emily41950
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
Answers: 3
![\left[\begin{array}{cccc}2&3&-1&14\\1&2&1&4\\5&9&2&7\end{array}\right]](/tpl/images/0247/5697/65c5e.png)
.![\left[\begin{array}{cccc}1&2&1&4\\2&3&-1&14\\5&9&2&7\end{array}\right]](/tpl/images/0247/5697/62b0a.png)
.![\left[\begin{array}{cccc}1&2&1&4\\0&-1&-3&6\\0&-1&-3&-13\end{array}\right]](/tpl/images/0247/5697/1c5da.png)
![\left[\begin{array}{cccc}1&2&1&4\\0&1&3&-6\\0&0&0&-19\end{array}\right]](/tpl/images/0247/5697/9ccaf.png)
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for the following linear system, put the augmented coefficient matrix into reduced row-echelon form....
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