Article snapshot taken from Wikipedia with creative commons attribution-sharealike license.
Give it a read and then ask your questions in the chat.
We can research this topic together.
The finals were played on a home-and-away two-legged basis, with the higher-seeded team hosting the second leg. If tied on aggregate, the away goals rule would not be used, and 30 minutes of extra time would be played. If still tied after extra time, the penalty shoot-out would be used to determine the winner. If extra time was played, a fourth substitution would be allowed.
Matches
First leg
Cícero scored the only goal in the 82nd minute with a left foot shot from six yards out after Jael headed the ball on to him inside the penalty box.
Diego Braghieri (Lanús) and Walter Kannemann (Grêmio) missed the second leg after picking up a yellow card in the first leg.
Grêmio scored twice before half-time. Fernandinho stole the ball in Gremio's half, ran freely toward Andrada's goal and hammered it home from the edge of the box in the 26th minute. In the end of the first half, Luan dribbled through two Lanus defenders and lobbied the ball gently into the net. In the second half, José Sand scored from the penalty spot in the 71st minute.