Answer:
275
Step-by-step explanation:
h hamburgers
c cheeseburgers
(h + c) -total
(c + h) = 614
64 more cheeseburgers sold then hamburgers:
64 more cheeseburgers sold then hamburgers
(c - h) = 64
(c + h) = 614
+(c - h) = 64
2c = 678
c = 678/2 = 339
c + h = 614
339 + h =614
h = 614 - 339 = 275