a+b=125
b+c=95
a+c=180adunam primele doua relatii si obtinem
a+2b+c=220
adunam a+c la relatia noua
obtinem 2a+2b+2c=400 impartim relatia la 2 si obtinem a+b+c=200
spor la teme !!!
coroana :)
a+b = 125
b+c = 95
a+c = 180
a+b+b+c+a+c = 125+95+180
2a+2b+2c = 400
a+b+c = 400÷8
a+b+c = 50
Raspuns: a+b+c = 50
