\[\frac{3^{\backslash 3}}{8}x + 19 = \frac{7^{\backslash 2}}{12}x + 24\]
\[\frac{9}{24}x - \frac{14}{24}x = 24 - 19\]
\[- \frac{5}{24}x = 5\]
\[x = 5\ :\left( - \frac{5}{24} \right)\]
\[x = - 5 \cdot \frac{24}{5}\]
\[x = - 24.\]