-4x+2=9 would be the answer for this equation
A simpler form of this expression would be 19y-9
Let's assume that the faster car has a 2 mile "head start".
The faster car is 1.2 times faster (48/40) than the slower car.
It will take five 2 mile trips to "catch" the other car.
Five 2 mile trips will take 5 * 40 seconds = 200 seconds.
Mark has 32 marbles and John has 96 marbles. If you add the marbles together they both have a total of 128.
Net yardage=3-6-4+5=-2
So the team lost 2 yards in four plays...