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Calculati:25-{27:[(36-27:3):3]+42:7x3} Urgent

Răspuns :

25-{27:[(36-27:3):3]+42:7x3}=25-{27:[(36-9):3]+6x3}=25-{27:[27:3]+6x3}=25-(27:9+18)=25-(3+18)=25-21=4