Question 44943
4-5||m|=|32|
|1 2||n|=|-5| 


I wonder what method you are studying.

The coefficient determinant is D=(8--5)=13
The m-determinant is Dm=(64-25)=39
The n-determinat is Dn=(-20-32)=-52

Then m= Dm/D=39/13 = 3
And n=Dn/D = -52/13 = -4

Cheers,
Stan H.