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Calculaţi:
a. [/-54+36/-(-4)]: /68 +571/;
c.(-15+/-32+12/-(-43)]:(-/-12/);
b. [-16-/-25-55/]: /23-39/;
d.[+13+ (-/-47/)-(-4)]: /-3-5/.
“/x/= modul de x”


Răspuns :