Talking about quantitative relations

Hello, my friend, the meaning of the question is not clear. How many pear trees are there in each row? Only one relationship can be listed.

Suppose there are x pear trees in each row.

There are more apple trees than pear trees.

The total number of pear trees is 5X.

Then apple trees MINUS pear trees are more trees (provided that there are more apple trees than pear trees, and vice versa)

The relationship is as follows: Y=36-5X.