To solve for \( n \) in the equation \( 3n = 3.5 \), you can divide both sides of the equation by 3:
\[ n = \frac{3.5}{3} \]
Calculating that gives:
\[ n = 1.1667 \quad \text{(approximately)} \]
So,
\[ n \approx 1.17 \]
Thus, the solution is:
\[ n \approx 1.17 \]