Answer:
The right option is 6 units to the left of 3.
Explanation:
In the number line, +x means x units moved to the right and -x means x units moved to the left.
Now, in our case, we have to locate the number 3 - 6 on the horizontal number line.
Now, we can start with position 3 on the number line then move 6 units to the left.
Therefore, the right option is 6 units to the left of 3. (Answer)