Question

The sum of two numbers is 47 and the difference is 13. What are the numbers?

Answer 1

The two numbers and 30 and 17.

Answer 2

Assume the smaller one is x, then the other one will be x+13

So sum of two numbers is 47: x+(x+13) = 47 -> 2x = 34 -> x = 17

So one number is 17, the other one will be 17+13 = 30