Respuesta :

niphithegreat

Answer: x = 40

Step-by-step explanation:

[2(x+10)] = (3x-30)   - Reason - Vertical angles

2x+10 = 3x-30     -  Action  - Distrubited

10= x - 30            - Action -  Subtracted 2x from both sides

40 = x                 - Action  - Added 30 to both sides