Question

Write an equation to solve the problem.

Jack has 5 trains. He gets 2 new trains every month for good behavior. How many months until Jack has 23 trains?

Answer 1

5 + 2m = 23

Explanation:

This equation can be solved as follows:

5 + 2m = 23

2m = 23 - 5

m = 18/2

m = 9 months