If it's not what You are looking for type in the equation solver your own equation and let us solve it.
n in (-oo:+oo)
(-1/2)*n = -6 // + 6
(-1/2)*n+6 = 0
6-1/2*n = 0 // - 6
-1/2*n = -6 // : -1/2
n = -6/(-1/2)
n = 12
n = 12
| 7d=49/12 | | -1/2x=-4 | | x+1=-7 | | b-9=-33/4 | | 1/6x=-1/22 | | m-1/5=-26/5 | | a+4=-2 | | 87/11=a+7 | | 3x^3+x^2-20x=0 | | 36/5=t+1/5 | | n-9=-29/3 | | 46/11=x+4 | | 4/9+d=1 | | 1/9+d=-61/99 | | 2/7d=-9/35 | | b-5/6=55/6 | | -1/2m=1/12 | | 4/7x-4/5=-4/5+4/5x | | 1/3x+4/7=-1/2x+229/462 | | 3x^2+x-20=0 | | x+5=8+6x | | -5x+5=-3x+3 | | 5/7x+2/5=-2x-841/35 | | 1/4x+2/3=-235/12+7x | | 7x+8=-5/7x+218/7 | | 4x+2/5=-142/5+2/5x | | 10x-166=4x-10 | | 5+2x=-x+29/4 | | 7x+2=202/7+2/7x | | 3/5-1/2x=3x-3/2 | | -1/3-5x=1/3x-23/5 | | 2/3x+9=42-3x |