9+[14+3×6-4)÷4+3]÷2-2=
9+[(14+18-4)÷4+3]÷2-2
9+[(32-4)÷4+3]÷2-2
9+(28÷4+3)÷2-2
9+(7+3)÷2-2
9+10÷2-2
9+5-2
14-2 = 12