589 hamburgers and cheese burgers sold in total. 61 less cheeseburgers than hamburgers were sold. how man hamburgers were sold?
Let the number of Hamburgers sold=H, then we have:
H - 61=Total Cheeseburgers sold, but
H + H - 61=589
2H=589 + 61=650 divide both sides by 2
H=325 Hamburgers sold
325 - 61=264 Cheeseburgers sold
