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Cel mai inteligent răspuns!
2014-03-11T16:58:21+02:00
A+b=21,73    notam a=3,02+b si inlocuim in formula ;    3,02+b+b=21,73     3,02+2b=21,73      2b=21,73-3,02    2b=18,71     b=18,71:2    b=9,355       a=3.02+9.355=12,375 . inlocuind in formula obtinem : 12.375+9,355=21,73

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