1. Let's clarify the problem: You mentioned that for $2b$, 250 isn't a value but 260 is. 2. Assuming you want to find $b$ given a value such as 260 for $2b$, we start with the equation: $$2b = 260$$ 3. To find $b$, we divide both sides of the equation by 2: $$b = \frac{260}{2}$$ 4. Simplifying, we get: $$b = 130$$ 5. Therefore, when $2b = 260$, the value of $b$ is $130$. 6. If you meant something else or have a different value or equation, please clarify!