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Efectuați: [-7+(-3)•(-4)•[5-6:(+2)]-11=

Răspuns :

-7+12x(5-3)-11=
-7+(12x2)-11=
-7+24-11=6
[-7+(-3)*(-4)*[5-6:(+2)]-11=
[-7+12*[5-3]-11=
[-7+24]-11=17-11=6