Question

<a and <b are vertical angels. if m<a= (5x-9)° and m<b= (8x-30)°, the. find the value of x​

Answer 1

x=7

Explanation:

Vertical angles are equal

5x-9 = 8x-30

Subtract 5x from each side

5x-9-5x= 8x-30-5x

-9 = 3x-30

Add 30 to each side

-9+30 = 3x-30+30

21 = 3x

Divide by 3

21/3 = 3x/3

7 = x