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Re: Microsoft has reached 600 Million Users

Op 03/12/2017 om 16:02 schreef Luis:
Good Guy wrote:
On 03/12/2017 13:21, GérardJan wrote:

+1 = -1

This is not correct.  It should be:
+1 = (-1 * -1)   or in primary school people used to write:

+1 = (-1 x -1)

Hope this helps you in your basic mathematics.

Without pretending to argue:
+1 is Internet slang and has nothing to do with math.
In basic mathematics it is not necessary to add a "+" sign to a positive integer.
Hope this help. Good day.

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