Ms. Huynh spent $640 to stay in a hotel for four nights. Each night she spent x dollars on the hotel room as well as a $15 parki
ng fee per day. The equation below represents the total amount, in dollars, that Ms. Huynh spent on her hotel. 4(x + 15) = 640 How much money did the hotel room cost for one night, excluding the parking fee?
First you need to find a way to isolate your variable (X). To do this you must divide 640 by 4. Next subtract 15 from each side. This will lead to x=140
