In ΔPQR, \text{m}\angle P = (4x-14)^{\circ}m∠P=(4x−14)
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, \text{m}\angle Q = (5x+6)^{\circ}m∠Q=(5x+6)
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, and \text{m}\angle R = (x-2)^{\circ}m∠R=(x−2)
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. Find \text{m}\angle R.m∠R.