Question

Find the value of two numbersif their sum is 12 and their difference is 4

Answer 1

The simple version is this


12-4= 8

Answer 2

We can set up a system of equations:

x + y = 12
x - y = 4

Adding these two together:

2x = 16
x = 8

Substituting 8 in the first equation:

8 + y = 12
y = 4

Hope this helps!