A number decreased by 13 is equal to the difference between 18 and 17. What is the number?

Question

Difference between squares of two numbers is 8. Twice the square of first number by square of second number is 19. What are the numbers?

Answer 1

x-13=18-17 ---> x= 14

Answer 2

since the difference between 18 & 17 is -1, my answer to your question is 12. When 12 is decreased by 13, the answer is -1.