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)
5*b-9 = -49 // + 49
5*b-9+49 = 0
5*b+40 = 0 // - 40
5*b = -40 // : 5
b = -40/5
b = -8
b = -8
| 6a+9=-51 | | -3+4d=-15 | | 2w+2=-12 | | -6x-7=-19 | | 7d+7=-56 | | 4+3n=-23 | | 4t-5=31 | | 4m+4=12 | | 9+5m=9 | | 7+7n=70 | | 5k+9=-31 | | 10+6d=-56 | | 8+6a=32 | | -7k+10=17 | | 3x+6=6x-21 | | 3+6m=63 | | -5k+3=38 | | -10=d-10 | | 1=a-3 | | a-7=-2 | | -6w=-6 | | -2=b+8 | | x^2-9/4x+5=x^2-9/5x+4 | | -3+m=6 | | -10+m=-5 | | w+3=14 | | -7+t=-16 | | 2=m+7 | | 6n=-60 | | 2=n+8 | | w+4=-7 | | 14=n+3 |