We're going to call the first number "x" and the second number, since it's seven less than the first, "x-7."
x + (x-7) = 19
2x - 7 = 19
2x = 26
x = 13
So the first number is 13. The second number is (x-7), so it is 6.
Let's check to see if we are right:
- Is the second number 7 less than the first? Yes
- Do the two numbers add up to 19? Yes