Consider a simple linear equation of the form:
$n=\frac{2x+2}{3}$
Let $n$ and $x$ represent something that comes in whole positive quantities (for example physical objects).
How can I
- Define the equation only for $n$ and $x$ that are a part of natural numbers (whole numbers >0)
- Solve the equation satisfying the above restriction (without for instace graphing it and looking for $n$ and $x$ that work)
Thanks!