Răspuns :
(2a+a+a)+(b+2b+b)+(c+c+2c)=142+144+146
4a+4b+4c=432
a+b+c=108
a=142-108=34
b=144-108=36
c=146-108=38
4a+4b+4c=432
a+b+c=108
a=142-108=34
b=144-108=36
c=146-108=38
2a+b+c=142
a+2b+c=144
a+b+2c=146
-----------------
4a+4b+4c= 432
---------------------
Continua tu ca e usor de aici :*
a+2b+c=144
a+b+2c=146
-----------------
4a+4b+4c= 432
---------------------
Continua tu ca e usor de aici :*