Решить матричное уравнение 1 2 3 5 3 4*Х=5 9

Решите задачу:

$A*X = B\\ A^{-1}*A*X=A^{-1}*B\\ X=A^{-1}*B$

$\left[\begin{array}{cc}1&2\\3&4\end{array}\right| \left\begin{array}{cc}1&0\\0&1\end{array}\right] = \left[\begin{array}{cc}1&2\\0&-2\end{array}\right| \left\begin{array}{cc}1&0\\-3&1\end{array}\right]=\\ = \left[\begin{array}{cc}1&0\\0&1\end{array}\right| \left\begin{array}{cc}-2&1\\1.5&-0.5\end{array}\right]\\ A^{-1}= \left[\begin{array}{cc}-2&1\\1.5&-0.5\end{array}\right]$

$X = \left[\begin{array}{cc}-2&1\\1.5&-0.5\end{array}\right]* \left[\begin{array}{cc}3&5\\5&9\end{array}\right]= \left[\begin{array}{cc}-1&-1\\2&3\end{array}\right]\\$