Answer:
∠ABD = 48
Step-by-step explanation:
use symbolab
(x+15)=(4x-12)
x+15-15=4x-12-15
x=4x-27
x-4x=4x-27-4x
-3x=-27
divide both sides by 3 and you get x=9
then put 9 in to replace x
((9) + 15) + (4 (9) - 12)
=24 + (4 (9) - 12)
= 24 + 24
=48
ur welcome
