Would it be no solution or something?{the natural numbers between -5 and 4}

What is the equation for:

How do you solve something like this:two-thirds of the way from -11 to 5? And whatistwo thirds of the way from -11 and 5?

x(x-2)=0 if the domain is all natural numbers?

A={a,1,2,3} List all of the subsets of A.