Answer:
20°
Step-by-step explanation:
Triangle NQP is a right triangle, so angle PNQ is the complement of angle P. It is 50°.
Angle RNQ is the base angle of isosceles triangle RNQ, which is 120° at angle R. So, angle RNQ = (180° -120°)/2 = 30°.
Now we have ...
x +30° = 50°
x = 20°
