Question

This spring it rained a total of 11.5 inches. This was 3 inches less than last spring. How do you write and solve an equation to find the amount of rain last season?

Answer 1

`x=14.5`, `14.5` inches

Explanation:

Since it rained 3 inches less than last year, we can use this equation to model the rain last season:
`x-3=11.5` Add `3` to each side to isolate `x`:
`x=14.5`.