Question

if 5y and 7 y are supplementary angles them the value of y​

Answer 1

Answer:

I think it help you and you understand

Answer 2

Step-by-step explanation:

5y + 7y = 180°

12y = 180°

y = 180/12

y = 15°

5y = 5*15 = 75°

7y = 7*15 = 105°