Respuesta :

dissonanceruckus

Answer:

x = 55

Step-by-step explanation:

1) 50 + x = 105   Exterior Angle Theorem (The sum of the exterior angle is equal to the sum of the two opposite interior angles)

2) Solve the equation
50 + x = 105
-50         -50
(105-50 = 55)

x= 55