Step 1: Find the equation of the lines.
The equation \( y = 3x - 5 \) is a linear equation. We compute the area of the region enclosed by the lines by integrating between \( x = 3 \) and \( x = 5 \).
Step 2: Conclusion.
The area is 14 square units.
Final Answer:
\[
\boxed{14 \, \text{sq units}}
\]