Răspunsuri

2014-04-02T15:43:27+03:00
A+b+c=300
a=b-20
c=3b
=> b-20+b+3b=300=>5b=320=> b=64
a=44
c=192
2014-04-02T15:46:58+03:00
A+b+c=300
b=a+20
c=3b
(a+20)*3=c
a+a+20+3a+60=300
5a+80=300
5a=220
a=44
b=64
c=192