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In ΔOPQ, \overline{OQ} OQ ​ is extended through point Q to point R, \text{m}\angle PQR = (7x-19)^{\circ}m∠PQR=(7x−19) ∘ , \text{m}\angle OPQ = (2x-3)^{\circ}m∠OPQ=(2x−3) ∘ , and \text{m}\angle QOP = (x+16)^{\circ}m∠QOP=(x+16) ∘ . Find \text{m}\angle PQR.m∠PQR.