how to get numerical value from symbolic variables equation

I have the following code

% defining T1, T2, T3, T4, T5

T = sym('T',[1 5]);

Eqn = 5*T(3);

T(3)= 6;

Now each time I call the value of Eqn it shows me 5*T(3)

How can I get a numerical value..?

Answer 1

[KSSV]

iwant = subs(Eqn,T(3)) ;
iwant = double(iwant) ;

You have to substitute T(3) in the equation.

[Alphonce Owayo]

This is not working

Answer 2

[KALAIYARASAN K]

% defining T1, T2, T3, T4, T5

T = sym('T',[1 5]);

Eqn = 5*T(3);

T(3)= 6;