Question

In adjoining figure , find thr value of x 3x-5 vertically opposite side as 2x +15

Answer 1

since , 3x-5 and 2x+15 are on vertically opposite sides of each other

they are equal , as vertically opposite angles are equal

=> (3x-5)° = (2x+15)°
=> 3x-5 = 2x+15
=> x = 20°

hope this helps

Answer 2

verticularlly opposite angles are equal ,
so 3x-5=2x+15
3x-2x=-5+15
x=10