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24:{[30+(-6)×(-5)]:60+2}+15:[(-3)×(-1)]
Ajutooor!


Răspuns :

24:{[30+(-6)×(-5)]:60+2}+15:[(-3)×(-1)]; 24:[(30+30):60+2)+15:3; 24:(60:60+2)+15:3; 24:(1+2)+15:3; 24:3+15:3; 8+5=13