If it's not what You are looking for type in the equation solver your own equation and let us solve it.
d in (-oo:+oo)
-(3*d)-9 = -6 // + 6
6-(3*d)-9 = 0
6-3*d-9 = 0
-3*d-3 = 0 // + 3
-3*d = 3 // : -3
d = 3/(-3)
d = -1
d = -1
| 5-6b=-31 | | n^2+n-4=8 | | 3d-2=16 | | 7m-6=57 | | x^2+5x=2x+5 | | 9.8x=2-x^2 | | -10+2k=-4 | | -2w+2=-16 | | 8+2w=-4 | | -4d+8=12 | | 6+5k=31 | | 4-6n=-56 | | -5k-6=-41 | | x*12-4=4 | | 3a+3=0 | | 6w+5=53 | | 4n+10=54 | | -4k+6=-34 | | 9+5w=39 | | -3+3b=21 | | x^2+.65=1.8x | | 4+2n=-16 | | -4k+5=-31 | | 2d+2=16 | | -4w+6=-6 | | 5t+3=63 | | x^2=-8x-7 | | 6-7d=62 | | 7-4w=-13 | | 2m+9=-13 | | -5+5w=-5 | | 4+2w=24 |