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(-3).(+11)-[(-6)+(-8)-(-2)].(+2)=
(-33)-(-6-8+2)(+2)=
(-33)-(-12)(+2)=
-33+12+2=
-19
(-6).[(-7)+(+3)-(7+6-14)]-(+7).(+3)=
(-6)(-7+3-(-1))-(7)(3)=
-6(-3)-(21)=
18-21=
-3
Saludos!!!!