Real world example could be:
Consider x is time in minutes
Consider y is the amount of fish food required in grams
The equation could then represent how much food (in grams) that a fish needs to be fed x minutes after it was previously fed.
(60-18)/2=21 cm
21/2=10.5 - half of the width
9 is less than half of the width.
There are no reasonable solution for this task.
Overlapping is what’s happening here!