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2014-04-28T15:45:44+03:00
2a+2b=84
a/b= 4 r 2 => 4b+2
2(4b+2)+2b=84
10b+4=84
10b=80
b=8
a=32+2=34
cu impartiri adunari scaderi
de clasa a patra
ionion tu o stii