Answer:
12
Step-by-step explanation:
This is a "absolute value"
We use this to make a number or the result of an equation positive.
Example: |2 - 8| = |-6| = 6
You solve the equation first and then turn it positive, if the number is positive, just remains de same.
In your case, it is just a negative number, you just have to turn it positive.
|-12| = 12
It is simple.
