Mama----------2x+2
Tata-------------(2x+2)+5 In total 184 ani
Fiul--------------x
Fiica-------------(2x+2):2=x+1
Alcatuim ecuatia: 2x+2+2x+2+5+x+x+1=184, 6x=184-10, 6x=174, x=174:6,
x=29 (Virsta fiului)
29+1=30 (Virsta fiicei)
2·29+2=60 (Virsta mamei)
60+5=65 (Virsta tatalui)
Verificare: 65+60+29+30=184