Răspuns :
1. l_______l
2. l_______l_______l_______l+9
3. l_______l_______l_______l+30 }1187
Obtinem doar parti egale: 1187-9-30=1148
Numarul partilor egale: 1+3+3=7
Primul numar: 1148:7=164
Al doilea numar: 164×3+9=492+9=501
Al treilea numar: 164×3+30=492+30=522 R. 164; 501; 522
2. l_______l_______l_______l+9
3. l_______l_______l_______l+30 }1187
Obtinem doar parti egale: 1187-9-30=1148
Numarul partilor egale: 1+3+3=7
Primul numar: 1148:7=164
Al doilea numar: 164×3+9=492+9=501
Al treilea numar: 164×3+30=492+30=522 R. 164; 501; 522
a+b+c=1187
b:a=3 r 9
c:a=3 r 30
b=3a+9
c=3a+30
a+3a+9+3a+30=1187
7a+39=1187
7a=1187-39
7a=1148
a=1148:7
a=164
b:164=3 r 9
b=164×3+9
b=501
c:164=3 r 30
c=164×3+30
c=522
V:164+501+522=1187
b:a=3 r 9
c:a=3 r 30
b=3a+9
c=3a+30
a+3a+9+3a+30=1187
7a+39=1187
7a=1187-39
7a=1148
a=1148:7
a=164
b:164=3 r 9
b=164×3+9
b=501
c:164=3 r 30
c=164×3+30
c=522
V:164+501+522=1187