Mathematics, 31.08.2019 22:30 carladasie
Solve the system of equations; x - 2y = 2 and 3x - 5y = 9 by writing and solving a matrix equation. show all your work.
Answers: 1
![\left[\begin{array}{ccc}1&-2\\3&5\end{array}\right] ( \left[\begin{array}{ccc}x\\y\end{array}\right])= ( \left[\begin{array}{ccc}2\\9\end{array}\right])](/tpl/images/0216/1159/8a36d.png)
![\frac{1}{11} \left[\begin{array}{ccc}5&2\\-3&1\end{array}\right] \left[\begin{array}{ccc}1&-2\\3&5\end{array}\right] \left[\begin{array}{ccc}x\\y\end{array}\right]= \frac{1}{11} \left[\begin{array}{ccc}5&2\\-3&1\end{array}\right] \left[\begin{array}{ccc}2\\9\end{array}\right]](/tpl/images/0216/1159/4e10f.png)
![\frac{1}{11} \left[\begin{array}{ccc}11&0\\0&11\end{array}\right] \left[\begin{array}{ccc}x\\y\end{array}\right] = \frac{1}{11} \left[\begin{array}{ccc}28\\3\end{array}\right]](/tpl/images/0216/1159/d278c.png)
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Solve the system of equations; x - 2y = 2 and 3x - 5y = 9 by writing and solving a matrix equation....
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