Solve For R 50Efdd

1. **State the problem:** Solve the equation $$3r = 9$$ for $$r$$. 2. **Formula and rules:** To solve for $$r$$, divide both sides of the equation by the coefficient of $$r$$, which is $$3$$. 3. **Intermediate work:** $$3r = 9$$ Divide both sides by $$3$$: $$\frac{\cancel{3}r}{\cancel{3}} = \frac{9}{3}$$ 4. **Simplify:** $$r = 3$$ 5. **Explanation:** We isolated $$r$$ by dividing both sides by $$3$$, which cancels the $$3$$ multiplying $$r$$, leaving $$r$$ alone on one side. The right side simplifies to $$3$$, so the solution is $$r = 3$$. **Final answer:** $$r = 3$$