Answer:
|4 - 7| = 3
|4| - 7 = -3
Explanation:
Absolute values are just the distance from zero. If a number is negative, then it becomes positive, and if a number is positive it stays positive, since distance is positive.
We first evaluate the stuff inside the absolute value. So |4 - 7| = |-3| = 3
For |4| - 7, we already have one value in the absolute value.... which is 4 and the absolute value of that is 4, so we get 4 - 7 = -3