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Doar c) imi trebuie maine

Doar C Imi Trebuie Maine class=

Răspuns :

( / inseamna supra)....
3/7=2x+1/7...simplifica 3 cu 21 si vine 1/7=2x+1/7...(2x+1)×7=1×7....2x+1=1×7:7...2x+1=1...2x=1-1...2x=0...x=0:2...x=0...sper ca e corect,asa mi.a iesit