Add and Subtract Matrices
-Let $A = \left[ \begin{array} { r r } 5 & - 4 \\ 5 & - 5 \\ - 8 & 7 \end{array} \right]$

Add and Subtract Matrices
-Let $A = \left[ \begin{array} { r r } 5 & - 4 \\ 5 & - 5 \\ - 8 & 7 \end{array} \right]$ and $B = \left[ \begin{array} { r r } - 7 & 6 \\ - 8 & 9 \\ 4 & - 4 \end{array} \right]$ . Find $A + B$

A)
$\left[ \begin{array} { l l l } - 2 & 2 \\ - 3 & 4 \\ - 4 & 3 \end{array} \right]$
B)
$\left[ \begin{array} { r r } 12 & - 10 \\ 13 & - 14 \\ - 12 & 2 \end{array} \right]$
C)
$\left[ \begin{array} { r r } - 2 & 2 \\ 3 & - 5 \\ - 4 & - 3 \end{array} \right]$
D)
$\left[ \begin{array} { r r } - 2 & - 5 \\ - 3 & 4 \\ - 4 & 3 \end{array} \right]$