# A number is doubled and 9 is added.

A number is doubled and 9 is added. If the resultant is trebled, it becomes 51. What is that number?

## Answer/Solution

4

### Steps/Work

Let the number be x. Then,

3(2x + 9) = 51

2x = 8 => x = 4

ANSWER:E

3(2x + 9) = 51

2x = 8 => x = 4

ANSWER:E