Given the matrices A=[1311]\displaystyle {A}={\left[\begin{array}{cc} -{1}&-{3}\\{1}&-{1}\end{array}\right]} and B=[443352]\displaystyle {B}={\left[\begin{array}{ccc} -{4}&-{4}&{3}\\-{3}&{5}&{2}\end{array}\right]}

A. It is to add these matrices.

B. If addition is possible what is A+B\displaystyle {A}+{B}