Răspuns :
a+b+c=102
b=2a
c=2b+25=4a+25
Inlocuim in prima ecuatie: a+2a+4a+25=102 ⇒ 7a=77, a=11
b=2a=22
c=2b+25=69
b=2a
c=2b+25=4a+25
Inlocuim in prima ecuatie: a+2a+4a+25=102 ⇒ 7a=77, a=11
b=2a=22
c=2b+25=69
a+b+c=102
b=2a
c:a=2r25
a+2a+c=102
3a+c=102
c=2a+25
5a+25=102
5a=67
afli a si apoi si b si c
b=2a
c:a=2r25
a+2a+c=102
3a+c=102
c=2a+25
5a+25=102
5a=67
afli a si apoi si b si c