|-2r-1|=11
-6, 5
|x/6| >= 5
x>=30 or x<=-30
|-2n+6|=6
0,6
|x+5|<9
-14<x<4
|5x|+5=45
8,-8
|b-8|+10>22
b>20 or b<-4
6|1-5x|-9=57
-2, 12/5
-3+ |n-2|>5
n>10 or n<-6
-5|9-5n|-7=38
No solution
|3+r|/7 <=5
-38<=r<=32