Respuesta :

Answer:

x = 19°, <SOR = 17°

Step-by-step explanation:

(5x + 4) + (x - 2) + (3x + 7) = 180°

Combine like terms:

9x + 9 = 180°

9x = 171

x = 19

<SOR = (19 - 2) = 17°

Answer is x = 19, SOR 17 degrees