QuestionThe triangle $PQR$, the measure of angle $P$ is $(3x + 5)^{\circ}$, the measure of angle $Q$ is $(2x + 9)^{\circ}$. If side $QR$ is extended through point $R$ to point $S$, and the measure of angle $PRS$ is $(x + y)^{\circ}$, What is the value of $x + y$?