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Efectuati:[75:5+12•(129-126)]-(30-25)•10

Răspuns :

(75:5+12×3-5)×10=
=(15+36-5)×10=
=(51-5)×10=
=46×10=460
75:5=15 129-126=3 12×3=36 30-25=5 5×5=25 15+36-10= 51-10=41