x - [3 + 2 (6 - 2x)]= 2(2x - 5)
x - (3 + 12 - 4x) = 4x - 10
x - 3 - 12 + 4x = 4x - 10
x + 4x - 4x = -10 + 3 + 12
x = 5
[tex][ 3 + 2 ( 6 - 2x )] = 2 (2x - 5 )[/tex]
[tex][ 3 + 12 - 4x ] = 4x - 10[/tex]
[tex][15 - 4x ] = 4x - 10[/tex]
[tex]15 - 10 = 4x - 4x[/tex]
[tex]\boxed{5 = x}[/tex]