Question 273049
A local hamburger shop sold a combined total of 494 hamburgers and cheeseburgers on Friday. There were 56 fewer cheeseburgers sold than hamburgers. How many hamburgers were sold on Friday? 
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Equations:
h + c = 494
c = h-56
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Substitute for c and solve for "h":
h + h-56 = 494
2h = 550
h = 275 (# of hamburgers sold)
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Since c = h-56, c = 219 (# of cheeseburgers sold)
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Cheers,
Stan H.