Suprimir paréntesis. a) 20+(-30)+25 =
b) -20-(+55)+45=
c) -26-(-34)+54=
d) 40+(28)-(42)=
e) -18-(+22)+(-16)=
b) -20-(+55)+45=
c) -26-(-34)+54=
d) 40+(28)-(42)=
e) -18-(+22)+(-16)=
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