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7+3•[2-3:(5•5-99:9•2)]


Răspuns :

= 7+3(2-3:(25-11*2)) = 7+3(2-3:3) = 7 + 3(2-1)= 7+3=10.
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7+3×[2-3:(5×5-99:9×2(]=
=7+3×2-3:3=
=7+6-1=
=12