Perform the Indicated Operation, Whenever Possible $A = \left[ \begin{array} { r r r } 7 & - 4 & 8 \\ - 6 & 5 & - 1 \\ 0 & 6 & - 3 \end{array} \right]$

Perform the indicated operation, whenever possible.
-Let $A = \left[ \begin{array} { r r r } 7 & - 4 & 8 \\ - 6 & 5 & - 1 \\ 0 & 6 & - 3 \end{array} \right]$ and $B = \left[ \begin{array} { r r r } - 2 & - 6 & - 1 \\ - 7 & - 4 & 3 \\ - 3 & - 9 & - 5 \end{array} \right]$ . Find $A - B$

A) $\left[ \begin{array} { r r r } 9 & 2 & 9 \\ 1 & 9 & - 4 \\ 3 & 15 & 2 \end{array} \right]$

B) $\left[ \begin{array} { r r r } 5 & - 10 & 7 \\ - 13 & 1 & - 8 \\ - 3 & - 3 & 2 \end{array} \right]$

C) $\left[ \begin{array} { r r r } 9 & 2 & 9 \\ 1 & 9 & 2 \\ 3 & 15 & - 4 \end{array} \right]$

D) $\left[ \begin{array} { r r r } 5 & - 10 & 7 \\ - 13 & 1 & 2 \\ - 3 & - 3 & - 8 \end{array} \right]$

Correct Answer:

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