[tex]p=\dfrac{144p}{y}\ \ \ \ |multiply\ both\ sides\ by\ y\neq0\\\\py=144p\ \ \ \ |subtract\ 144p\ from\ both\ sides\\\\py-144p=0\ \ |common\ factor\ (p)\ before\ the\ bracket\\\\p(y-144)=0\ \ \ |multiply\ both\ sides\ by\ (y-144)\neq0\\\\\huge\boxed{p=0}[/tex]