Ans: $n=\dfrac{8+5m}{3}$
$\begin{array}{rcl}
\dfrac{3n-5m}{2} & = & 4 \\
3n – 5m & = & 8 \\
3n & = & 8 + 5m\\
n & = & \dfrac{8+5m}{3}
\end{array}$
$\begin{array}{rcl}
\dfrac{3n-5m}{2} & = & 4 \\
3n – 5m & = & 8 \\
3n & = & 8 + 5m\\
n & = & \dfrac{8+5m}{3}
\end{array}$