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Math and our number system, is an invented formal system used to describe real concepts, and has been compared to a language. If we didn't use the concept of negative numbers, that would simply mean that we had coined a different notation to describe everything. All of the laws of nature would be the same, and the universe would be the same, but we would use different terminology to describe certain concepts.
Our system of mathematics might be more awkward, which would cause scientific and engineering advances to suffer. Then again, it could also be logically equivalent and just as good as the one we have now. It is impossible to say which.
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Why are negative numbers in brackets positive but positive numbers in brackets are not negative?
'cuz
Is it always true that two negatives make a positive?
Adding two negative numbers will always be negative. Subtracting two negative numbers may be positive or negative. Dividing or multiplying two negative numbers will always be positive.No
Are negative numbers depressed?
No. Numbers are abstract concepts: they are alive and so have no feelings (sorry, numbers!)
Is negative sixteen an integer?
Yes. "Integer" includes positive numbers, negative numbers, and zero.
Is negative 14 an irrational number?
Whole numbers are RATIONAL. That includes negative whole numbers.
