Respondido

{54+[72:2+(7.9-6:2)]+3}:9=

Resposta :

{54+[72:2+(7.9-6:2)]+3}:9

{54+[72:2+(63-3)]+3}:9

{54+[72:2+ 60]+3}:9

{54+[36+60]+3}:9

{54+96+3}:9

153:9

17

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