Question

John thinks of a number.

He adds 15 to his number then multiplies by 2. His answer is 32.
What was his number?

Need help again :/

Answer 1

1

Explanation:

We do the inverse of everything he has done

He multiplied by 2 so we divide

32 ÷ 2 = 16

He adds 15 so we subtract

16 - 15 = 1

To Check

1 + 15 = 16

16 x 2 = 32