Answer
Cubs won 75 games.
Astros won 76 games.
Brewers won 77 games.
Work Step by Step
Let x represent the number of Cubs wins.
Brewers wins: x+2
Astros wins: x+1
x+(x+1)+(x+2)=228
3x+3=228
3x=225
x=75
Cubs won 75 games.
Astros won 76 games.
Brewers won 77 games.