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a fost răspuns

Efectuează respectand ordinea operat de lor a) {[(738-457)×3-(48+57)×7]×9-68×5:2}:2=
b) {[(40×3:6×10:5+60):10+590]-(75×4)}-(918:9)=

Răspuns :

Dragons1305
a) {[(738-458)×3-(48+57)×7]×9-68×5:2}:2=
[(280×3-105×7)×9-68×5:2]:2=
[(

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