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Efectuati 8+{2+[5+5x12+(7x6+13]-15}

Răspuns :

8+(2+(5+60+(42+12)-15)=8+(2+(56+54)-15)=8+(112-15)=8+97=105
8+[2+(5+5x12+55)-15]
8+(5+120)-15
8+125-15
133-15
raspunsul este 118