Solution

160037

Problem / game
Your number was... Back to problem
First name
Furkan
School
TED Ankara Koleji
Country
Turkey
Age
11

Part 1: (X+4) .2 - 7 is equal to 2X + 1, so we subtract 1 from the result and divide by 2 to get the starting number.

Part 2: My set is (8X+3).2 - 6. That is equal to 2X, so we divide it to 2 to get the starting number.