|-6|-7=

To calculate the absolute value of -6, you need to take the positive value of -6, which is 6. Therefore, | -6 | = 6.

Next, calculate the absolute value of -7 by taking the positive value of -7, which is 7. Therefore, | -7 | = 7.

So, | -6 | - 7 = 6 - 7 = -1.