Carmen has 18 cars available to rent.
Let C be the number of cars she would have left after renting R of them.
Write an equation relating to C to R Then use this equation to find the number of cars she would have left after renting 14 of them.
The equation relating C to R is: C = 18 - R
Substitute R = 14 into the equation:
C = 18 - 14
C = 4
Therefore, Carmen would have 4 cars left after renting 14 of them.