Răspunsuri

2014-01-28T17:11:57+02:00
A + b = 660
b:3 = a:2  /·6 => 2b = 3a
a + b = 660 => 2a + 2b = 1320 => 2a + 3a = 1320 => 5a = 1320 => a = 264 => b = 396
1 5 1
2014-01-28T17:12:01+02:00