Respuesta :

Answer:

<1 = 168

<2 = 12

Step-by-step explanation:

First, you need to solve for x

8x + x -9 = 180

9x -9 = 180

9x = 189

x = 21

Now, substitute in 21 for x for both angles

8(21) = 168

(21) - 9 = 12