1. **State the problem:** Solve for $x$ in the equation $3x - 4 = 5$. 2. **Add 4 to both sides:** $$3x - 4 + 4 = 5 + 4$$ $$3x = 9$$ 3. **Divide both sides by 3:** $$\frac{\cancel{3}x}{\cancel{3}} = \frac{9}{3}$$ $$x = 3$$ 4. **Final answer:** $x = 3$. This means that when $x$ is 3, the original equation holds true.