Question

The sum of two numbers is 17 and their difference is 5, what are the two numbers?

Answer 1

11, 8

Explanation:

x + y = 17

x - y = 5

The "y" cancels out when you add the two equations and you end up with:

2x = 22

x = 11

Then, plug the "x" back into one of the equations to find "y":

11 + y = 17

y = 6