x+10=24
-9x=-81
12x=144
x-(-15)=11
x-14=-6
x-7=-21
4+x=36
x+24=16
4x=16
x+9=6
x/7=-2
x/2=7
x-4=0
-x/6=-2
14x=-42
x+10=18
-6x=48
x-6=-10
-x/8=-4
x-21=-12
