Respostas

2014-02-05T17:36:22-02:00
-12+18(-20)-14=
-12-2-14=
-28
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2014-02-05T17:37:40-02:00
Olá,

-12+18(-20)-14=

-12+18-20-14=
-46+18=-28

ESPERO TER AJUDADO!! =)
1 5 1