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)
-12 = x/2 // - x/2
-(x/2)-12 = 0
-1/2*x-12 = 0 // + 12
-1/2*x = 12 // : -1/2
x = 12/(-1/2)
x = -24
x = -24
| kover-9+6=-4 | | 9(2+x)-4x=-3x-10 | | 2x-9=9x+4 | | 7-6x=15x | | 140=4x/36 | | (4x+y)(x+4y)-17xy= | | x^2-16x+80=0 | | 3(2x+1)=57 | | 2+7n=11+4n | | 8/9=4/5x | | x*6+y*8=156 | | z+4=8-z | | 2/3x-5/9x+1/18x-1 | | 6-3y=x | | X/123456=0 | | 5h+2(11-1h)=-5 | | (64(g^4)(y^4))^1/3 | | -5x-5+7x=11 | | -6v=8v+7(v+6) | | 3(x*6)=x | | 10x-2y=6fory | | y=-10x-6 | | 49t^2-1=0 | | X/4-5=20 | | (64g^4y^4)^1/3 | | x(x-9)=-3x | | -6(-7x-8)=-3x+3 | | 4y-11=23 | | -6v= | | 18-3x=3x+52 | | 6x^2-18+6=18x | | -10+m=-15 |