Mathematics, 28.06.2019 21:00 jeffrey74081
Use row reduction to solve the system of equations.
Answers: 1
![\left[\begin{array}{cccc}1&-2&1&|\:\:\:\:4\\3&-5&-17&|\:\:\:\:3\\2&-6&43&|-5\end{array}\right]](/tpl/images/0028/5507/8fc90.png)
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![\left[\begin{array}{cccc}1&-2&1&|\:\:\:\:\:\:\:\:\:\:4\\0&1&-20&|\:\:\:\:-9\\0&-2&41&|-13\end{array}\right]](/tpl/images/0028/5507/0c265.png)
![\left[\begin{array}{cccc}1&0&-39&|-14\\0&1&-20&|\:\:-9\\0&0&1&|-31\end{array}\right]](/tpl/images/0028/5507/c4279.png)
![\left[\begin{array}{cccc}1&0&0&|\:-1223\\0&1&0&|\:\:\:\:-629\\0&0&1&|\:\:\:\:\:\:-31\end{array}\right]](/tpl/images/0028/5507/e0d8f.png)
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