well, let's say they lost "a" games.
ok, they won 14 more than that, so they won "a + 14" then.
now, we know they played a total of 84 games, thus a + (a + 14) = 84
[tex]\bf a+(a+14)=84\implies 2a+14=84\implies 2a=70\implies a=\cfrac{70}{2}
\\\\\\
a=35[/tex]
how did they play? well, they did alrite, could have done better I guess.