Răspunsuri

2014-11-03T15:29:07+02:00
A+b+c=428
a+b=331
b+c=303
a+303=428
a=428-303
a=125
331+c=428
c=428-331
c=97
125+b+97=428
b=428-125-97
b=206

125+206+97=428