1. **State the problem:** Solve for $m$ in the equation $$\frac{m}{2} + 9 = 12.$$\n\n2. **Isolate the term with $m$:** Subtract 9 from both sides to keep the equation balanced.\n$$\frac{m}{2} + 9 - 9 = 12 - 9$$\n$$\frac{m}{2} = 3$$\n\n3. **Eliminate the denominator:** Multiply both sides by 2 to solve for $m$.\n$$2 \cdot \frac{m}{2} = 2 \cdot 3$$\n$$\cancel{2} \cdot \frac{m}{\cancel{2}} = 6$$\n$$m = 6$$\n\n**Final answer:** $m = 6$