What two numbers add to 1 and subtract to 19?

Here we will tell you what two numbers add to 1 and subtract to 19 and prove that our answer is correct.

The two numbers that add to 1 and subtract to 19 are:

10 and -9

And here is the math to prove that our answer to "What two numbers add to 1 and subtract to 19?" is correct:

Add:
10 + (-9) = 1

Subtract:
10 - (-9) = 19

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