Răspunsuri

2014-01-16T19:38:09+02:00
100a+10b+c=60b+6c
100a-50b-5c=0   /:5
20a-10b-c=0 => c=0
20a-10b=0   /:10
2a-b=0 
2a=b
a=1; b=2 => abc=120
a=2; b=4 => abc=240
a=3; b=6 => abc=360
a=4; b=8=> abc=480