%%Matlab code for linear system  Using Inverse Method
% Here we sue either mldivide or  inv or A\b approach 
format compact
A= [ 1 3 -2  ; -1 -1 5  ; 0 1 -9 ];
b=[1 -2 3]';
%x = mldivide(A,b);
%x=inv(A)*b;
%x=A^(-1)*b;
x=A\b;