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Rezolvati ecuatia :


[(x+29*2)*3+4]*11=1991


Răspuns :

11*(3x+3*58 +4)=1991↔ 11*(3x+174+4)=1991 ↔ 33x+1958=1991 ↔ 33x=1991-1958↔ 33x=33 ↔ x=33/33↔ x=1. S={1}.