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)
-25 = 7*b-(5*b)-1 // - 7*b-(5*b)-1
5*b-(7*b)-25+1 = 0
5*b-7*b-25+1 = 0
-2*b-24 = 0 // + 24
-2*b = 24 // : -2
b = 24/(-2)
b = -12
b = -12
| 2+2m+7m=83 | | 4+7k+4k=81 | | -9+5t+7t=-105 | | -3-6k+4k=-17 | | -5=-6n+7n+2 | | 5+6m+6m=65 | | 2-7d-2d=-52 | | 4+3m+7m=124 | | 1+4n-7n=-32 | | -8+12/-4 | | 9=b+4b+9 | | 7b+8+5b=152 | | -2x+10+3x=16 | | 8+2n-4n=-6 | | 2b+6-4b=2 | | 7a+5+3a=-25 | | b-1+3b=11 | | 4x^2+12x+4K=0 | | -b+4+7b=10 | | 7-5b-5b=77 | | 5n+6-6n=6 | | -54=-b-4b+6 | | 4n+9+3n=9 | | -8+4a-5a=-8 | | 3=3b+2b-7 | | 3x+375=8x | | 8w+6/-4 | | 19=-3m+6m+1 | | 2n+1+n=4 | | 5n+2-6n=-10 | | 70=-4w-4w+6 | | 16=t+5t-2 |