$(d_1) \hspace{5mm} \color{red}{1}x+\color{red}{2}y+5=0 $
$(d_1) \hspace{5mm} \color{red}{-3}x+\color{red}{\frac{3}{2}}y-6=0 $
$(d_1)//(d_2)$, car $1\cdot(-3)+2\cdot\frac{3}{2}=0$