If it's not what You are looking for type in the equation solver your own equation and let us solve it.
b in (-oo:+oo)
6*b-7*b+1 = 9 // - 9
6*b-7*b-9+1 = 0
-b-8 = 0 // + 8
-b = 8 // * -1
b = -8
b = -8
| 4m-9+6m=61 | | 6a+10+3a=28 | | -91=-5d-4d+8 | | 1+4w+3w=29 | | 2-t-4t=-3 | | 10(3+x)=37 | | 4-5d-7d=100 | | 12=5n-4n+5 | | -23=7a-2a-8 | | -5a+4-4a=-95 | | -44=n+5n+4 | | -2k+4+6k=32 | | -5m+2-6m=-20 | | -7+2w+5w=56 | | -170=7d+7d-2 | | -19=4x-7x+8 | | -1=6m-7m+7 | | 40=7n-n+4 | | -4=-6m-5m+7 | | 3=7x+2x+3 | | 20=2d+d-10 | | -3b+3+6b=36 | | 8=-4m+m-1 | | d+7-3d=27 | | d-2-2d=-4 | | -4-t+3t=18 | | 6-4a-a=66 | | -4y+2=-2 | | 6n+2-7n=-1 | | m-5+6m=58 | | -33=-4w-3w+2 | | -18=7a-6a-6 |