The sum of two numbers is 19 and their difference is 7. What are the two numbers?

Solution:

Given sum is 19 and difference is 7

Let the two numbers be x, y

x + y = 19 --- [1]

x - y = 7 --- [2]

By the method of elimination, we get

2x = 26

x = 26/2 = 13

Put x = 13 in eq[1], we get

13 + y = 19

y = 19 - 13

y = 6

Therefore, the two numbers are 13, 6

The sum of two numbers is 19 and their difference is 7. What are the two numbers?

Summary:

The sum of two numbers is 19 and their difference is 7, the two numbers are 13, 6.