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efectuati:
[(34)2+26/22-20]/[(32)4-42-30]=


Răspuns :

(34)2+26/22-20]/[(32)4-42-30]=
(68+1,1818-20)÷(128-42-30)=
(69,1818-20)÷(86-20)=
49,1818÷66=
0,7451