Do I exchange pieces when I have 3 pawns for a Knight/Bishop?

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leessjn07

I realized that I get 3 pawns for a piece,or the opposite in many games

In this occasion, do I have to exchange pieces or avoid exchanges in general? 

Chess_Player_lol

theres no rule for this situation that will always work. typically it depends on how strong the pawns are: if the pawns are far pushed and able to promote easily and endgame is likely favorable. similarly, if the pawns are super weak and easy targets then piece trades are less favorable.

leessjn07

thx