If A=and B=are such that 4A + 3X = 5B then X=?

1

If A and B are 2-rowed square matrices such that

(A+B)= and (A-B)=then AB=?

2

If + 2A =then A=?

4

If (A-2B)=and (2A-3B) =then B=?

5

If (2A – B) = and (2B + A) =then A=?