Respuesta :

Step-by-step explanation:

Here,

[tex]\angle{ADB}[/tex] = [tex]\angle{BDC}[/tex]

⇒4x-23° = 3x-5°

⇒4x-3x=(-5°)+23°

⇒x=18°

.°. x = 18°

Answer:

x = 18°

Step-by-step explanation: