1.afla masa fiecărui animal gaina+ iepure= 7 kg porc+gaina=53 kg iepure+iepure+iepure= 15 kg gaina+porc+ iepure=?? 2. Rezolva pb curcan+ pisica=100hg iepure+curcan=110 hg pisica+iepure=70 hg curcan+pisica+iepure=???? VA ROG E URGENT, DAU COROANA, TOT CE VRETI