Răspuns :
r=romani
s=straini
r+s=44
r:s=6 rest 2⇒r=6s+2
6s+2+s=44
7s=42
s=6
r=6x6+2
r=38
Verificare : 38+6=44
s=straini
r+s=44
r:s=6 rest 2⇒r=6s+2
6s+2+s=44
7s=42
s=6
r=6x6+2
r=38
Verificare : 38+6=44
r+s=44
r:s=6,2
r=6s+2
Inlocium in prima ecuatie pe r
6s+2+s=44
7s=44-2
7s=42
s=42:7
s=6
r=6*6+2
r=36+2
r=38
r:s=6,2
r=6s+2
Inlocium in prima ecuatie pe r
6s+2+s=44
7s=44-2
7s=42
s=42:7
s=6
r=6*6+2
r=36+2
r=38