Respostas

2014-04-21T14:07:42-03:00
Isso ficará:
Y - 4 = 5y + 20
-4 + 20 = 4y
16 = 4y
y = 16/4
y = 4
  • Usuário do Brainly
2014-04-21T14:17:23-03:00
Y - 4 = 5Y + 20
-4 + 20 = 4Y
16 = 4Y
Y = 16/4
Y= 4