Let h represent hamburgers and c represent cheeseburgers. We can set up an equation:
h + c = 437
h + (h - 63) = 437
h + (h - 63 + 63) = 437 + 63
h + h = 500
2h = 500
2h / 2 = h
500 / 2 = 250
h = 250
250 hamburgers were sold.
To find how many cheeseburgers were sold, we subtract 250 - 63:
250 - 63 = 187
187 cheeseburgers were sold.
187 + 250 = 437
250 hamburgers and 187 cheeseburgers were sold on Thursday.
