Question

please answer these questions and I want step by step explanation. plzzz​

Answer 1

Answer:

I) opposite angles are equal so

2x-25°=115°

2x = 115°+25

2x = 140°

x= 70°

II) straight line are equal to 180°

so

(2x-5°)+(3x+10°) = 180°

2x-5°+3x+10° = 180°

5x + 15° = 180°

5x = 180°-15°

5x = 165°

x = 33°