and 
![\left[\begin{array}{cccc}-8&-8&|&-16\\6&-9&|&-108\end{array}\right]](/tpl/images/0069/4989/b36cf.png)
. So, we will get...![\left[\begin{array}{cccc}1&1&|&2\\6&-9&|&-108\end{array}\right]](/tpl/images/0069/4989/f76e1.png)
![\left[\begin{array}{cccc}1&1&|&2\\0&-15&|&-120\end{array}\right]](/tpl/images/0069/4989/7a88f.png)
. So, we will get...![\left[\begin{array}{cccc}1&1&|&2\\0&1&|&8\end{array}\right]](/tpl/images/0069/4989/e79e9.png)
![\left[\begin{array}{cccc}1&0&|&-6\\0&1&|&8\end{array}\right]](/tpl/images/0069/4989/851f7.png)
Use a matrix to find the solution to the systems of equations
...
Mathematics, 09.07.2019 13:00, smartie80
Use a matrix to find the solution to the systems of equations
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