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+1 = 91-(5*b) // - 91-(5*b)
5*b+5*b-91+1 = 0
10*b-90 = 0 // + 90
10*b = 90 // : 10
b = 90/10
b = 9
b = 9
| 5x*3=51 | | 21-y=7 | | 8-4a=-5a+9 | | -9+6x=7x-14 | | -2+2d=3d-10 | | -3t+5=-t-17 | | 7+5k=-4k+7 | | -5x-7=-106+6x | | 62/7*18=x | | -(4y+1)-(-3y-4)=1 | | 2y^2+y-3= | | 0.3x+0.6=15 | | -4+3m=2m-13 | | -5n+6=-n-14 | | -9+6x=-6x+63 | | 10+4n=-6n+100 | | -4m+4=-59+3m | | -6d+4=4d-96 | | 5/6x-1/5x+4+7/10x | | 3s^2-5s+2= | | -7d-6=-6+3d | | 6x+7=-2x-33 | | 1+2d=6d+49 | | 2y+x=2y-8 | | 3x-7=56-6x | | -9-4d=d-29 | | -7b+4=-b-68 | | x-10=-7x+46 | | 7d+1=4d+34 | | -6-5x=-x-30 | | -1+x=-4x-56 | | 3a-4=68-6a |