Răspunsuri

2014-11-16T12:25:27+02:00
A + b + c = 163
a : b = 5 rest 7  ⇒  a = 5b + 7
c = a + 6   ⇒  c = 5b + 7 + 6   ⇒ c = 5b + 13
5b + 7 + b + 5b + 13 = 163
11b = 143
b = 143 : 11
b = 13
a = 5 * 13 + 7
a = 65 + 7
a = 72
c = 5 * 13 + 13
c = 65 + 13
c = 78