Question

Ana,Bogdan ,si Carmen au 22 de baloane Bogdan are cu doua mai multe decat Ana si Carmen are de doua ori mai multe decat Ana

Answer 1

a+b+c=22, b=a+2, c=2a, inlocuim b si a in prima ecuatie

a+a+2+2a=22, 4a=20, a=20/4=5 baloane are Ana

b=5+2=7 baloane are Bogdan, c=2*5=10 baloane are Carmen, 5+7+10=22

Answer 2

a+b+c=22
b=2*a
c=2*a
b /_/ ...2
c /_/ /_/ )22
a /_/
4 p +2=22
4p=20
1p=5
a=5
b=7
c=10