(3 2/3у+1/6)-3 3/4=9 1/16
(3 2/3у+1/6)-3 3/4=9 1/16 3 2/3y+1/6=9 1/16+3 3/4 3 2/3y+1/6=9 1/16+3 12/16 3 2/3y+1/6=12 13/16 3 2/3y=12 13/16-1/6 3 2/3y=12 39/48-8/48 3 2/3y=12 31/48 y=12 31/48:3 2/3 y=607/48*3/11 y=3 79/176