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-6 = 12 // - 12
(1/2)*x-12-6 = 0
1/2*x-18 = 0 // + 18
1/2*x = 18 // : 1/2
x = 18/1/2
x = 36
x = 36
| (1/2)x-4=(3/4)x+12 | | (1/2)x-4=(3/4)x | | 4x=68-4 | | (1/2)x-3=11 | | (1/2)x-1=15 | | (1/2)x-12=4 | | (1/2)x-1/4=6 | | (1/2)x-(5/3)=(-1/2)+(19/4) | | (1/2)x-(3/2)=(5/2) | | 48-7/5 | | 10x-9=3x+12 | | (1/2)x-(2/3)=x+(1/5)1 | | (1/2)x-(1/16)=(1/3) | | (1/2)x+6=(3/4)-2x | | (1/2)x+6=(1/3)x | | (1/2)x+4=6 | | (1/2)x+3=7 | | 11-14x=115 | | (1/2)x+1=12 | | (1/2)x+1=(3/2)x-8 | | (1/2)x+16=(1/4)x+26 | | (1/2)x+(1/4)=2x+12 | | -3x^3y+9x^2y^2+120xy^3=0 | | (1/2)x+(1/3)=(5/6) | | 23x+6=-5x+10 | | (1/2)s=21 | | -27x^5+75x^3y^2=0 | | 3x^6+3x^3=0 | | (1/2)r+4=(3/4)r-(3/2) | | b^2+7b+60=0 | | 12s^2+11sw-15w^2=0 | | 11s^2+11sw-15w^2=0 |