$\left\{\begin{matrix}x<0\text{, }&y\leq 0\\x\in \left(-\frac{5}{3y},0\right)\text{, }&y>0\text{ and }y<\frac{1}{3}\\x>0\text{, }&y>\frac{1}{3}\end{matrix}\right.$

$\left\{\begin{matrix}y>\frac{1}{3}\text{, }&x>0\\y<-\frac{5}{3x}\text{, }&x<-5\\y<\frac{1}{3}\text{, }&x\geq -5\text{ and }x<0\end{matrix}\right.$