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Respondido

-13+7-9+5-13=
-20+10-10+20+14-13-1=
-8-10+17-3+4-7+8-1=
-6-7-13-26+54-2=​

Resposta :

DiogoLeitaogo

Resposta:

-13+7-9+5-13=-23

-20+10-10+20+14-13-1=0

-8-10+17-3+4-7+8-1=8

-6-7-13-26+54-2=0

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