What is the absolute value of l-6l?

The absolute value of |l-6| is the distance between the number 'l' and the number 6 on the number line, regardless of the direction. If l is greater than 6, the absolute value of |l-6| is l-6. If l is less than 6, the absolute value of |l-6| is 6-l. In either case, the absolute value function ensures that the result is always non-negative.