Răspunsuri

2014-11-18T18:54:10+02:00
A+b=432
a-b=216=>a=216+b
inlocuim a in prima ecuatie
216+b+b=432
2b=432-216
b=108
a=324
2014-11-18T18:55:57+02:00
A+b=432
a-b=216=>a=216+b

216+b+b=432
216+2b=432
2b=216
b=108

a+108=432
a=432-108
a=324