Răspuns :
Metoda 1:
E+V+D=217
E+V=158
V+D=144
Rezolvare:
E+V+D=217
(E+V)+D=217
158+D=217 rezulta D=217-158=59 (Daria)
V+D=144
V+59=144
V=144-59=85 (Victor)
E+V=158
E=158-V=158-85=73 (Ema)
Metoda 2: Rezolvare grafica in fotografie
E+V+D=217
E+V=158
V+D=144
Rezolvare:
E+V+D=217
(E+V)+D=217
158+D=217 rezulta D=217-158=59 (Daria)
V+D=144
V+59=144
V=144-59=85 (Victor)
E+V=158
E=158-V=158-85=73 (Ema)
Metoda 2: Rezolvare grafica in fotografie
![Vezi imaginea Abulafia](https://ro-static.z-dn.net/files/d92/157966eee7e702f00982cb2894a992e1.jpg)
e+v+d=217
e+v=158 e=158-v
v+d=144 d=144-v
158-v+v+144-v=217
-v=217-302
v=85 Victor
e=158-85=73 Ema
d=144-85=59 Daria
l.......l 59
l.......l.....l73
l.......l.......l85
e+v=158 e=158-v
v+d=144 d=144-v
158-v+v+144-v=217
-v=217-302
v=85 Victor
e=158-85=73 Ema
d=144-85=59 Daria
l.......l 59
l.......l.....l73
l.......l.......l85