math
2y+7=9
-1
lxl = 12
x=12,-12
5x-1=9
x=2
-9-9
-18
-4--5
5
-3x+7<19
x<-4
lxl=1/2
1/2,-1/2
-9
2--8
10
80--9
89
2(3x-4)>_10
x>_3
5+lxl=14
x=9,-9
-9-2
-11
9--5
14
48--37
85
-3a+10<-11
a>7
3 l x l =24
8,-8
-12-9
-21
3--8
11
-56-43
-99
4a>32
a>8
l x- 1 l =2
3,-1
-5-23
-28
-6-7
-13
57--69