5[2(3|2x-5|-11)-13]= 8+27
5[2(3|2x-5|-11)-13]= 35
[2(3|2x-5|-11)-13]= 35:5
2(3|2x-5|-11)-13=7
2(3|2x-5|-11)=7+13
2(3|2x-5|-11)=20
3|2x-5|-11=20:2
3|2x-5|-11=10
3|2x-5|=10+11
3|2x-5|=21
|2x-5|=21: 3
|2x-5| =7
2x-5=7 => 2x= 7+5=> 2x= 12 => x=6 sau
2x-5= -7 => 2x= -7+5 => 2x= -2 => x= -1
S={-1,6}