Three friends went bowling. The cost per game for each person was $5.30. The cost to rent shoes per person is $2.50. The total for all three people was $55.20. How many games did they play?

There is an automatic cost of 2.50 each for shoes. So 2.50*3 = 7.5

This is the amount they paid for shoes, the rest was spent on playing.

55.20-7.5=47.7

Between the three of them they spent a total of 47.7

47.7 Is the total price

5.30 is the price per game

3 is the amount of people

47.7 = (3) 5.3x

Now solve for x

47.7=15.9x

Then divide each side by 15.9

3=x

They each played 3 games or a total of 9 games