Answer:
11<x<19
Explanation:
| x-15|<4
There are two solutions to absolute value equations one positive and one negative, remember to flip the inequality for the negative solution
x-15 <4 and x-15 > -4
Add 15 to each side
x-15+15 <4+15 and x-15+15 > -4+15
x<19 and x> 11
We can rewrite this as
11<x<19