Question c0b06579

$\frac{3}{2}y-\frac{1}{4}x=\frac{2}{3}-\frac{3}{2}y$

$\frac{1}{2}x+\frac{3}{2}=py+\frac{9}{2}$

In the given system of equations, $p$ is a constant. If the system has no solution, what is the value of $p$?