Answer:
3
Step-by-step explanation:
Angle bisector divides the angle into two equal angles,
So,
x + 7 = 2 ( 3x - 4 )
x + 7 = 6x - 8
6x - 8 = x + 7
6x - x = 7 + 8
5x = 15
x = 15 / 5
x = 3
