The sum of two numbers is 17 the difference of the two number is 13 what are the numbers

Answer: x = 15; y = 2

Step-by-step explanation:

x + y = 17

x - y = 13

x + y = 17

x = 17 - y

17 - y - y = 13

17 - 2*y = 13

- 2*y = 13 - 17

- 2*y = - 4

y = - 4 / - 2

y = 2

x + y = 17

x + 2 = 17

x = 17 - 2

x = 15