Step-by-step explanation:
For 1st question
x = 35° + 15° {exterior angle of a triangle is equal to the sum of two opposite interior angles }
x = 50°
For second question
9x + 16° = 90° + 5x - 14°{exterior angle of a triangle is equal to the sum of two opposite interior angles }
9x - 5x = 90° - 14° - 16°
4x = 60°
x = 60° / 4
x = 15°
Hope it will help :)
