
Andrea Y. answered 10/22/21
5+ Yrs Experience Tutoring Math and Writing
hamburgers = h
cheeseburgers = c
1. h + c = 584 Sum of hamburgers and cheeseburgers sold is 584.
2. h - 66 = c
h + (h - 66) = 584 Substitute the second equation into the first one.
2h - 66 = 584
2h = 584 + 66
2h = 650
h = 325 hamburgers
584 - 325 = 259
c = 259 cheeseburgers