Question

Amir thinks of a number,
He triples it and adds 9 to get 54.
What number did he think of?​

Answer 1

15

Explanation:

3x + 9 = 54

x = (54-9) / 3

x = 15

Answer 2

The number he think of is 15

Explanation:

Let x be the number

3x + 9 = 54

x = (54-9) / 3

x = 15

The number he think of is 15