Shawn's rentals charges $27.50 per hour to rent a surfboard and a wet suit. darla's surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit. for what total number of hours are the charges for shawn's rentals the same as the charges for darla's surf shop?

Have x = the number of hours rented
so in order to find when they would be the same, set both equations equal to each other
27.50x=23.25x+17
first subtract the smaller (x) amount from the larger (x) amount
27.5x-23.25x=4.25x
4.25x=17
divide both sides by 4.25
x=4
after 4 hours would the rentals cost from both shops be the same