To find the opposite of a number, you simply change its sign.
- The opposite of -8 is \( +8 \) (or simply \( 8 \)).
- The opposite of -6 is \( +6 \) (or simply \( 6 \)).
So, the answers simplified as much as possible are:
- The opposite of -8 is \( 8 \).
- The opposite of -6 is \( 6 \).