Răspunsuri

2014-10-26T18:38:48+02:00
A:b=5 rest 7 ⇒ a= 5b+7
a-b=1999
5b+7-b=1999
4b+7=1999
4b=1999-7=1992
b=498 ⇒ a=1999+498=2497


5 4 5