Answer:
| -18 | = 18
Explanation:
The value which is described as the distance of a number on the number line from the zero value (0) despite of which direction it is going is known as the absolute value.
When we take the absolute value of a number, we always get a positive value without considering if the value was negative or positive.
So the absolute value of -18 will be 18.
| -18 | = 18