Question

BAC is a straight line . find the value of y . ​

Answer 1

Answer:

(2y + 20)° + (2y + 40)° = 180° (linear pair)

2y + 20° + 2y + 40° = 180°

2y + 2y + 20° + 40° = 180°

4y + 60° = 180°

4y = 180° - 60°

4y = 120°

y = 120/4

y = 30°

Answer 2

Answer:

y = 30°

Step-by-step explanation:

In a straight line angle is equal to 180°

2y+20° + 2y+40° = 180°

4y+60° = 180°

4y = 180°-60°

4y = 120°

y = 120°/4

y → 30°

Hopes this helps you!