The sum of two numbers is 89, and their difference is 65. What are the two numbers?

Question

The sum of two numbers is 89, and their difference is 65. What are the two numbers?

Answer 1

JJ,

 

Let x and y be the numbers

 

x + y = 89

x-y = 65

 

Adding the equations

2x = 154, x = 77

= = 89-x = 89-77 = 12