1. The problem is to find the limit $$\lim_{x \to 0^+} (x - x)$$. 2. The expression inside the limit is $x - x$. 3. Simplify the expression: $x - x = 0$ for all $x$. 4. Since the expression is constantly zero, the limit as $x$ approaches $0$ from the right is simply $0$. Therefore, $$\lim_{x \to 0^+} (x - x) = 0$$.