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(691-[987:3+(770:7x6:3):5] ajutati-ma va rog dau coroana

Răspuns :

691-[987:3+(770:7x6:3):5] =
691-[329+(110x6:3):5] =
691-[329+(660:3):5] =
691-(329+220:5)=
691-(329+44)=
691-373=
318