We see the numbers on a number line
_____|___|___|___|___|___|___|___|___|___|___|___|___|____>
-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3
<______________________________|_________>
9 3
You need to add both distances
|-9| + 3 = 9 + 3 = 12
half
12 : 2 = 6
Now , we measure the distance towards the center section
1 way
-9 + 6 = -3
2 way
3 - 6 = -3
Answere : -3
_____|___|___|___|___|___|___|___|___|___|___|___|___|____>
-9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3
<___________________|____________________>
6 6
we used the average math
| - 9 | means that the assumed value of -9 9 (positive )
