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[3+6:(12-10)+(6×2-24:8):(9-2×2-22:11)]:3+(9×5-20):5=

Răspuns :

[3+6:(12-10)+(6×2-24:8):(9-2×2-22:11)]:3+(9×5-20):5 =

= [3+6:2 + (12-3) : (9-4-2)] : 3 + (45 -20) : 5 =
= (3 + 3 + 9 : 3) : 3 + 35 : 5 =

= (6 + 3) : 3 + 7 =

= 9 : 3 + 7 =

= 3 + 7 =

= 10