1/2{1/2[1/2(1/2x-3]-3}=-11/2[1/2(1/2x-3]-3=-21/2[1/2(1/2x-3]=11/2(1/2x-3)=21/2x-3=41/2x=7x=14
1/2{1/2[1/2(1/2x-3)]-3}=-11/2{1/2[1/4X-3/2]-3}=-11/2{1/8X-3/4-3}=-11/16X-15/8=-11/16X=15/8-11/16X=7/8X=7/8*16X=14