John invested $575 in stocks. if he lost d dollars when he sold the stocks, which expression represents the amount of money he received for his stocks?

Let:
 y: the amount of money I received for his stocks
 d: lost dollars.
 The expression that best suits the problem is:
 y = 575-d
 Where:
 y <575
  
 An expression that represents the amount of money I received for his stocks is:
 y = 575-d