Question 708719: When 9 is taken away from 6,10 from 9,50 from 40.The result is 6.How come ?
Answer by KMST(5328)   (Show Source):
You can put this solution on YOUR website! Maybe we are in an alternate place where "add" and "take away" have the meaning familiar to me, but the symbols for numbers have different meanings.
9 is the number that added to other numbers does not change them, like our zero, and we call it the neutral number for addition.
6-9=6 <--> 6=6+9
6 and 10 are opposite numbers that add up to the neutral number for addition.
9-10=6 <--> 9=6+10
I have no idea what 40 and 50 mean, but I know that
40-50=6 <--> 40=6+50 <--> 40-6=50
and since 6 and 10 are opposites, taking away 6 means adding 10, so
 --> 50=40+10,
which looks familiar, but it is just coincidence.
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