1. **State the problem:** Solve the equation $3n - 4 = 11$ for $n$. 2. **Formula and rules:** To solve for $n$, we need to isolate $n$ on one side of the equation by performing inverse operations. 3. **Step 1:** Add 4 to both sides to cancel the $-4$. $$3n - 4 + 4 = 11 + 4$$ $$3n = 15$$ 4. **Step 2:** Divide both sides by 3 to solve for $n$. $$\cancel{3}n = \frac{15}{\cancel{3}}$$ $$n = 5$$ 5. **Answer:** The solution to the equation is $n = 5$. This means when $n$ is 5, the original equation $3n - 4 = 11$ holds true.