What two numbers add to 8 and subtract to 9?

Here we will tell you what two numbers add to 8 and subtract to 9 and prove that our answer is correct.

The two numbers that add to 8 and subtract to 9 are:

8.5 and -0.5

And here is the math to prove that our answer to "What two numbers add to 8 and subtract to 9?" is correct:

Add:
8.5 + (-0.5) = 8

Subtract:
8.5 - (-0.5) = 9

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