There are 59 apple trees and pear trees in the orchard, among which there are x pear trees, how many more apple trees than pear trees?
果园中苹果树和梨树共59棵，其中梨树有x棵，苹果树比梨树多多少棵．
<gadget id="calculator">59 - 2</gadget>
<output>57</output>

<result>57</result>