Respostas

2014-07-22T19:05:01-03:00
(-2).(-7)- (-1)³+18:6=
14-(-1)-3=
14+1-3=12
2014-07-22T19:06:10-03:00
(-2).(-7) = + 14
(-1)³= -1
18:(-6)= -3

+ 14 -(-1) + (-3) =14 + 1 - 3 = 15 -3= 12

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