Question 16659
-|25|=-25
The | | signs mean absolute value, which means "How many digits on a number line is the number away from zero?"
So if you have |25|=25, because it is 25 digits away from zero.
Also if you have|-25|=25, because it is 25 digits away from zero.
But in the case of  -|25|, only the 25 is in the | | sign so the answer would be 25, but the negative is outside the || so the number is negative.
Hope you understand
=)