Because by definition, there sum will always be zero. Because the definition of opposites are additive inverses.
Chat with our AI personalities
Zero
It is zero and that is simply because that is how additive opposites are defined.
"Opposites" cannot mean additive opposites since, by definition, their sum must be 0. So "opposites" is likely to mean multiplicative opposites. This gives the equation x + 1/x = 100 Then the two numbers are 0.010010 and 99.989999 to 6 dp.
Placing a question mark at the end of a phrase does not make it a sensible question. Try to use a whole sentence to describe what it is that you want answered.One possible answer to the question, as asked, is that the sum of two negative numbers is easy to calculate.
You add the two numbers together, then divide the sum by two.