[ ( 6x - 39) : 3 ] . 28 = 5628
[ ( 6x - 39) : 3 ] = 5628 :28
( 6x - 39) : 3 = 201
( 6x - 39) = 201 .3
6x - 39 = 603
6x = 603 + 39
6x = 642
x = 642 :6
x = 107
`[(6x - 39) : 3] . 28 = 5628`
`=> (6x - 39) : 3= 5628 :28`
`=> (6x - 39) : 3= 201`
`=> 6x - 39= 201.3`
`=> 6x - 39=603`
`=> 6x = 603 + 39`
`=> 6x =642`
`=>x=642:6`
`=>x=107`
`~~M~~`