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b=[56+4x(84:6+104:8)]=

Răspuns :

56+4x(84:6+104:8)] = 
56+4x(14+13)=
56+4x27
56+108=
164
56 + 4 x (84 : 6 + 104 : 8)] = 
56 + 4 x (14 + 13) =
56 + 4 x 27 =
56 + 108 =
164