What is the numbers that add to 19 and can subtract it and the awnser is 7

Answer 1

Do you mean that the sum of the 2 numbers is 19 and the difference is 7?

If so, then here's how to do it:

a + b = 19

a - b = 7

ADD the 2 equations to get:

2a = 26

So: a = 13 and b = 6