Calculate: $\left(\begin{array}{ccc}5 & 3 & -4 \ 7 & 2 & 6 \ 5 & 6 & 9\end{array}\right)-\left(\begin{array}{ccc}2 & 8 & 3 \ 5 & 6 & -2 \ 1 & 7 & 4\end{array}\right)+\left(\begin{array}{ccc}-1 & -6 & 5 \ 3 & 8 & 2 \ 7 & -2 & 6\end{array}\right)$

Question

Quizplus · Accepted Answer

The Answer of Calculate: $\left(\begin{array}{ccc}5 & 3 & -4 \ 7 & 2 & 6 \ 5 & 6 & 9\end{array}\right)-\left(\begin{array}{ccc}2 & 8 & 3 \ 5 & 6 & -2 \ 1 & 7 & 4\end{array}\right)+\left(\begin{array}{ccc}-1 & -6 & 5 \ 3 & 8 & 2 \ 7 & -2 & 6\end{array}\right)$