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2014-02-10T20:43:54+02:00
B=3a
c=b+1⇒c=3a+1
c-a=19⇒3a+1-a=19⇒2a=18⇒a=9.,  b=27,  c=28.
1 5 1
2014-02-10T20:47:24+02:00
B / a=3; => b= 3a;

c/b = 1 rest 1 (inlocuim b)

c/ 3a = 1 rest 1 => c= (3a*1) +1 (inlocuim c)

c-a =19 => 3a+1-a =19 => 2a=18 =>a=9, b=3a=27, c=3a+1=27+1=28