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The answer depends on the context. Numbers have different opposites with regard to different operations. The basic characteristic is that the number and its opposite will combine, using that operation, to form the identity.
For example,
the additive opposite of 4 is -4 (identity = 0)
the multiplicative opposite of 4 is 0.25 (identity = 1)
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How Minus 3 multiply minus 3 9?
-3 x -3=9 A rule in pre-algebra summarizes in a problem when their is an odd amount of odd - (negative numbers) then the answer is negative, if it is even is is positive.So the problem is asking, the opposite of three times the opposite of three equals 9, so lets take one of those opposites away. The opposite of three times three equals opposite of nine. (If you haven't noticed, negative and opposite are interchangeable.) And another opposite and get the original problem, the opposite of three times the opposite of three equals 9. So the opposite of the negative nine from the first multiply, is positive nine.Example-3 x 3= -9 (1 negative)-3 x -3= 9 (2 negative, the opposite of the opposite.)Tips- It is easier to think as two - - = +,DO NOT MISTAKE THIS WITH ++=+, IT DOES NOT EQUAL A NEGATIVE.THIS ONLY WORKS WITH MULTIPLYING AND DIVIDING.(in basic math)
