Răspunsuri

2014-10-19T15:05:40+03:00
A + b + c = 281
a = 2 c
(b - a) : (a + c) = 3 rest 1 
b - a = 3(a + c) + 1
b - a = 3a + 3c + 1
b - 2c = 3 * 2c + 3c + 1
b = 2c + 6c + 3c + 1
b = 11 c + 1
inlocuim pe a si b in prima ecuatie
2c + 11c + 1 + c = 281
14c = 281 - 1
14c = 280
c = 280 : 14
c = 20
a = 2 * 20
a = 40
b = 11 * 20 + 1
b = 220 + 1
b = 221
33 4 33