$$\left[\begin{matrix} 5 & 3 \\-2 & 4 \end{matrix}\right] - \left[\begin{matrix} -4 & 6 \\5 & -2 \end{matrix}\right]$$
$\left(\begin{matrix}9&-3\\-7&6\end{matrix}\right)$
$$\left(\begin{matrix}5&3\\-2&4\end{matrix}\right)-\left(\begin{matrix}-4&6\\5&-2\end{matrix}\right)$$
$$\left(\begin{matrix}5-\left(-4\right)&3-6\\-2-5&4-\left(-2\right)\end{matrix}\right)$$
$$\left(\begin{matrix}9&3-6\\-2-5&4-\left(-2\right)\end{matrix}\right)$$
$$\left(\begin{matrix}9&-3\\-2-5&4-\left(-2\right)\end{matrix}\right)$$
$$\left(\begin{matrix}9&-3\\-7&4-\left(-2\right)\end{matrix}\right)$$
$$\left(\begin{matrix}9&-3\\-7&6\end{matrix}\right)$$
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$33$
