Respuesta :

Hrishii

Answer:

x = 17

Step-by-step explanation:

Angle A and angle B are complementary.

Therefore,

(2x + 16)° + 40° = 90°

(2x + 16)° = 90° - 40°

(2x + 16)° = 50°

2x + 16 = 50

2x = 50 - 16

2x = 34

x = 34/2

x = 17