Each square below contains either a fulcrum, or a weight from 0-3.  Each group of squares surrounded by black lines is a balance containing one fulcrum where it would balance, with equal torque on both sides.  The fulcrum will not be at the end of a balance.  Each number outside the grid indicates the total weight in that row or column, counting fulcrums as 0.   Each puzzle below has a unique solution.   
 →
 → 
|  |  |  |  | 
|  |  |  |  | 
|  |  |  |  | 
|  |  |  |  | 
|  |  |  | 
|  |  |  | 
|  |  |  | 
|  |  |  |