1) 4(х-3/4) 2) 3/8(х+4/5) 3) 2/3(х+6)

1) = 4х - 3/4    
       4х = 3/4
         х = 3/16

2) = 3/8х + 3/10
       3/8х = - 3/10
            х = - 4/5

3) = 2/3х + 6
       2/3х = - 6
            х = - 9