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)
4*d-(6*d)+7/9 = 4/9 // - 4/9
4*d-(6*d)+7/9-(4/9) = 0
4*d-6*d+7/9-4/9 = 0
1/3-2*d = 0 // - 1/3
-2*d = -1/3 // : -2
d = -1/3/(-2)
d = 1/6
d = 1/6
| 3/5k-6+5k=-34 | | 6+4/7m+2/3m=-62/7 | | 4/7a+1/5+1/2a=-293/35 | | 3a-3/8+1/3a=17/8 | | 8-3/5x+x=198/25 | | -109/15=-3x-1/3x-3/5 | | 1/3d+2-1/3d=2 | | 3/4+4/7x+4x=531/196 | | 3a+10+3a=10 | | 2x-5+3x-17=90 | | y^2+20x+6y=71 | | 1/2k-1-6/7k=-15/14 | | 2/5-7x-1/4x=-141/10 | | 7/9-4w-2w=493/9 | | 30*4=3x | | -1/2b-2/9+2/5b=-2/9 | | -4/5m-9+6m=-227/5 | | -4/7a+7/9-2/3a=265/441 | | 2d+6+4/7d=32/7 | | 2-m+5/6m=101/48 | | 10+x+2x=29/4 | | -1/4=4a+4a-1/4 | | -2/3+3t+5/6t=67/72 | | 4w+7/9-5w=-1/18 | | 7n-2-3n=1/3 | | 6a-1/4+1/2a=25/4 | | -1/2a-2+2/5a=-27/10 | | 3/7k-9+k=-61/7 | | 3m+1-1/2m=21 | | 52/11=w-7w+2 | | 2/7a+3-1/6a=73/21 | | x/7-8=-17 |