The Reptile House at the zoo has 5 fewer animals than 3 times the number of animals housed in the Rain Forest exhibit. If the Reptile House has 16 animals, how many are in the Rain Forest exhibit?
Think hard. Detailed solution:
7
Let x be the number of animals in the Rain Forest exhibit.

3x - 5 = 16.

3x = 21.

x = 7.

.

The answer is 7