\(\Leftrightarrow\dfrac{1}{3}\left(2x-5\right)=-\dfrac{2}{3}-\dfrac{3}{2}\)
\(\Leftrightarrow\dfrac{1}{3}\left(2x-5\right)=-\dfrac{13}{6}\)
\(\Leftrightarrow2x-5=-\dfrac{13}{6}:\dfrac{1}{3}\)
\(\Leftrightarrow2x-5=-\dfrac{13}{2}\)
\(\Leftrightarrow2x=-\dfrac{3}{2}\)
\(\Leftrightarrow x=-\dfrac{3}{4}\)