Respuesta :
Answer:
10
Step-by-step explanation:
The absolute value always returns a positive value, that is
| - a | = | a | = a , thus
| 5 - 15 | = | - 10 | = 10
It's pretty simple! The answer is 10! Because the absolute value of a number is never negative.
(Mark me as the brainliest if my answer is helpful!)