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Calculati desfiintand parantezele:
14+{-7+[+4-11+(-5-4)-(-6+8-3)]+7} = ?
URGENT! Dau coronita! :D


Răspuns :

rezulta 14+{-7+[-7-9-(+2-3)]+7}=
14+{-7+[-16-(-1)]+7}=
14+{-7+[-16+1]+7}=
14+{-7-15+7}=
14-15=-1