function x=LT_Solver(A,b)
n=size(A,1);
x=zeros(n,1);
x(1,1)=b(1)/A(1,1);
for i=2:n
    x(i,1)=(b(i)-A(i,1:(i-1))*x(1:(i-1),1))/A(i,i);
end