a+b+c=141
(b-a):(a+c)=3 rest 1
a=2c
il inlocuim pe a in cele doua relatii
2c+b+c=141
(b-2c):(2c+c)=3 rest 1
(b-2c):(2c+c)=3 rest 1
b-2c=3*3c+1
b-2c=9c+1
b=9c+2c+1
b=11c+1
il inlocuim pe b in prima relatie
2c+11c+1+c=141
2c+11c+c=141-1
14c=140
c=140:14
c=10
a=2c
a=2*10
a=20
a+b+c=141
20+b+10=141
b=141-20-10
b=111
111*10*20=22200