The absolute value of the a certain number is the positive equivalent of the number.
Example,
The absolute value of 3, expressed as I3I is 3. Also,
the absolute value of -3, expressed as I-3I is 3.
For this item, we have the equation,
Ix - 6I = 3
If we substitute 3 to x, we have,
I3 - 6I = I-3I = 3
Also, if we substitute 9 to the equation,
I9 - 6I = I3I = 3
Thus, we can have the equation as given above,
Ix - 6I = 3
as the answer.
It is to be noted that there are still other equations that can be used as answer to this item.
