If it's not what You are looking for type in the equation solver your own equation and let us solve it.
x in (-oo:+oo)
(-1/2)*(x-4) = 18 // - 18
(-1/2)*(x-4)-18 = 0
-1/2*(x-4)-18 = 0
-1/2*(x-4)-18 = 0
-1/2*x-16 = 0
-1/2*x-16 = 0
-1/2*x-16 = 0 // + 16
-1/2*x = 16 // : -1/2
x = 16/(-1/2)
x = -32
x = -32
| -12=9+7x | | (-79/16)=-2x | | 4x+3(5X-17)=120 | | 5c/3=30 | | 62=3(9)+35 | | b/(-2)-8=16 | | 6a/7=18 | | 3x-1+4x=-9+7x+8 | | 68=92-n | | 5h+13=63 | | 6x+7(2x-13)=29 | | 2b/5=18 | | X-y/w=a | | 3b/5=15 | | 2x+6(x+12)=120 | | 4z/5=16 | | 10q+5=35 | | z-2/3=1/8=3/24 | | -19=-6+y | | 3x+2-8x+15+6x=50 | | 4x+5(2x-9)=81 | | 2/g=5/m | | 6x/-5=42 | | x+2+7x-3=180 | | -34=2(3v+8) | | 25-(3x+5)=2(x+8)+x | | 165=15-v | | 69=y/3 | | 7x+3(3x+11)=129 | | 0.1z-0.07=-0.07z | | -2(5+6x)=-106 | | -27=3-6x |