Question

The sum of two numbers is 20. Their difference is 4.

a. Write a system of equations that describe this situation
b. Solve by elimination to find the two numbers

Answer 1

The two numbers are 12 and 8

Explanation:

Well this is pretty simple

We can just list out everything that Adds up to 20

1+19

2+18

3+17

4+16

5+15

6+14

7+13

8+12

9+11

10+10

Now just subtract each one until you get the one that equals to 4

Which is 12 and 8 in this case