Question 672035
The big screamer coaster carries 92 people altogether.  Some of its cars carry 4 passengers and the rest carry 6 passengers.  There are three less 6 passenger cars than 4 passenger cars.  How many 4 passenger cars are there?
==================
f = 4 passenger cars
s = 6
-----
s = f - 3
4f + 6s = 92
-----
Can you do the rest?