👤

-3•{-8-3•[-2•(4-7+5-3)•(-6+4-3)+6]}=


Răspuns :

 -3•{-8-3•[-2•(4-7+5-3)•(-6+4-3)+6]}= 
= -3•{-8-3•[-2•(9-10)•(-9+4)+6]}= 
= -3•{-8-3•[-2•(-1)•(-5)+6]}= 
= -3•{-8-3•(-2•5+6)]=
= -3•{-8-3•(-10+6)]=
= -3•{-8-3•(-4)]=
= -3•(-8+12)= 
= -3•4=12