Question

Corey thinks of a number he adds 25 to it then half the result then he subtracts 17 and multiplies the result by 3 his final answer is 18 what number did Cory start with

Answer 1

Corey's original number was 21.

Explanation:

He added 25, halved the result, subtracted 17, and then multiplied it by 3, ending up with a final answer of 18.