Final answer:
The correct calculation for the expression -|-6| - (-6) is to first evaluate the absolute value of -6, which is 6, and then change the subtraction to addition, resulting in -6 + 6, which equals 0.
Step-by-step explanation:
The question asked is a simple absolute value and arithmetic question.
The first step is to understand that the absolute value of a number is always positive.
Therefore, the absolute value of -6 is 6.
The expression -|-6| becomes -6 because the double negative inside the absolute value cancels out and the minus sign outside remains.
Next, we have to subtract this value from the number -6, which has its sign changed to positive because of the minus sign in front of the parentheses.
This operation is similar to the given example 2-(-6)=2+6 = 8.
So for the original question, the calculation would be -|-6| which equals -6 and then -6 - (-6), turning into -6 + 6 upon changing the signs.
Consequently, the final answer is 0, since subtracting 6 from 6 or adding -6 to 6 both result in zero.