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a fost răspuns

[9x(101x1+111)-(83-7x(36:9+63:9)

Răspuns :

[9x(101x1+111)-[83-7x(36:9+63:9)]=

[9x(101+111)-[83-7x(4+7)]=

9x212-(83-7x11)=

1908-(83-77)=

1908-6=

1902