Seudónimo
Seudónimo
03-07-2017
Mathematics
contestada
I think its the 3rd one am i correct?
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gabie10129
gabie10129
03-07-2017
no that is wrong because the third option :a+b=b+c, shows the commutative property of addition. the correct answer is the first option : a+(b+c)=(a+b)+c.
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