Question

The sum of two numbers is 20. Their difference is 4. What are the numbers? Use the variable A & B

Answer 1

Explanation:

A+B=20

12 and 8

There is a difference of 4 between them and they add up to 20.

Answer 2

x + y = 20

x - y = 4

Add the 2 equations and get

2x = 24

x = 24/2 = 12

Plug x=12 into either equation and get

y = 8