Answers

2014-07-15T15:24:55+08:00
Additive inverse property
0
Thank You for answering my question. :)
my pleasure :)
2014-07-15T20:11:08+08:00
It is the same in 12-12=0
because 12+(-12)
is equal to (+)(-)=-
12-12=0

hope it helps you ^_^
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