Find the numbers

Question

The sum of two numbers is 17. If twice the smaller number is 1 more than the larger number, find the numbers

Answer 1

x + y = 17   ---->  x + y = 17

2x = y + 1   ----> 2x - y = 1

                         ----------------

                           3x = 18 ----> x = 6

that makes y = 17 - 6 = 11