![AX = B\\X = A^{-1}B\\\\A = \left[\begin{array}{CC}\\2&5\\1&3\end{array}\right]\\\\\\B =\left[\begin{array}{C}\\15&18\end{array}\right]\\\\\\X =\left[\begin{array}{C}\\x&y\end{array}\right]](/tpl/images/2388/4509/2ee5b.png)
![det A = 1\\\\adj A = \left[\begin{array}{CC}\\3&-5\\-1&2\end{array}\right]](/tpl/images/2388/4509/eae29.png)
![= 1 \times \left[\begin{array}{CC}\\3&-5\\-1&2\end{array}\right]\\\\\\= \left[\begin{array}{CC}\\3&-5\\-1&2\end{array}\right]](/tpl/images/2388/4509/bfb67.png)
![X = A^{-1}B\\\\\\\left[\begin{array}{C}\\x&y\end{array}\right] = \left[\begin{array}{CC}\\3&-5\\-1&2\end{array}\right]\left[\begin{array}{C}\\15&18\end{array}\right]\\\\\\](/tpl/images/2388/4509/5b412.png)
Which matrix equation can be used to solve the system?
(2x+ 5y = 15
X + 3y = 18
...
Mathematics, 02.06.2021 14:00, andaws21
Which matrix equation can be used to solve the system?
(2x+ 5y = 15
X + 3y = 18
Answers: 1
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