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2014-03-09T22:09:12+02:00
Fie a si b numerele cautate! a+b=84=> a=84-b (1) 1/3×a+4=b/5=> a/3+4=b/5=>5a+6a=3b=>》11a=3b Vom baga relatia (1) in 11a=3b , deci avem: 924-11b=3b=>14b=924=> b=66 si a=18 /-fractie=impartit