Răspunsuri

2014-11-12T08:58:57+02:00
A+b+c=1575
a=2(b+c) ; a=2(b+15+b); a=2(2b+15); a=4b+30
c=15+b
4b+30+b+15+b=1575
6b+45=1575 |-45
6b=1530 | /6
b=255

a=4x255+30
a=1020+30
a=1050

c=15+255
c=270