To solve for \( y \) in the equation
\[ \frac{y}{3} + 12 = 16, \]
follow these steps:
- Subtract 12 from both sides:
\[ \frac{y}{3} = 16 - 12. \]
This simplifies to:
\[ \frac{y}{3} = 4. \]
- Multiply both sides by 3 to solve for \( y \):
\[ y = 4 \times 3. \]
This gives us:
\[ y = 12. \]
Thus, the solution is:
\[ y = 12. \]