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(24+6 ori2) :4+7-(28-12:3):6

Răspuns :

(24+6x2):4+7-(28-12:3):6=
(24+12):4+7-(28-4):6=
36:4+7-24:6=
9+7-4=12
(24+12):4+7-(28-4):6
36:4+7-24:6
9+7-4
12