Answer:
You have to put A on -6 and b on 6.
Explanation:
IN order to solve tis you just have to take one of the markers, lets say A and move it 6 units to the left all the way to -6, then you just have to move the B marker 6 units to the right from 0 all the way to the 6, that is how you get the two numbers that have a distanceof 6 units from 0 on the number line.