To determine the number Andre started with, we can work backwards through the given operations.
Andre's final result is 26. Let's reverse each step:
1. Add your original number: 26 + 7 = 33
2. Subtract 7: 33 - 7 = 26
3. Multiply by 3: 26/3 = 19
4. Add 2: 19 - 2 = 17
Therefore, the number Andre started with is 17.
Claire asks Andre to play the following number puzzle:
- Pick a number
- Add 2
- Multiple by 3
- Subtract 7
- Add your original number
Andres final result is 26
Which number did he start with?
1 answer