function [ sols ] = BackSub( A,b )
%

[n,m]=size(b);
b(n,:)=b(n,:)/A(n,n);

for i=(n-1):-1:1
    b(i,:)=(b(i,:)-A(i,(i+1):n)*b((i+1):n,:))/A(i,i);
end

sols=b;

end