Question

Ema, Victor si Daria au folosit pt un experiment 217 cuburi. Ema si Victor au folosit 158 de cubuuri iar Victor si Daria 144 de cuburi. Cate cuburi a folosit fiecare copil? rezolvare in 2 moduri

Answer 1

e+v+d=217
e+v=158
v+d=144

aflam cate cuburi a folosit daria
158+d=217
d=59
aflam cate cuburi a folosit Ema
e+144=217
e=73
aflam cate cuburi a folosit Victor
73+v=158
v=85