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(691 -[987:3+(770:7 x6:3) :5] =

Răspuns :

Răspuns:

691 -[987:3+(770:7 x6:3) :5] =

691-[329+(110x6:3):5]=

691-[329+(660:3)5]=

691-(329+220:5)=

691-(329+44)=

691-373=318