If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( b )
b = 0
b = 0
b = 0
b in (-oo:0) U (0:+oo)
79/b = 91/100 // - 91/100
79/b-(91/100) = 0
79/b-91/100 = 0
79*b^-1 = 91/100 // : 79
b^-1 = 91/7900
-1 < 0
1/(b^1) = 91/7900 // * b^1
1 = 91/7900*b^1 // : 91/7900
7900/91 = b^1
b = 7900/91
b = 7900/91
| 6n-4n-2/5=8 | | 19.50-80.00x=-750.50 | | 79/b-91/100 | | -4y+6=-2(3y+3) | | 3x-2/7=5/2 | | 2x-6y=8w | | 2(x-5)+9=4x-2(-1+x) | | -7625+185h=0 | | a(n-3)+8=bn | | 4/3x+5/3=10 | | 2v^2-4v+4=(v-4)(v-4) | | 10-3m=7 | | 7x+17=3x-20 | | 5/3x+2/3=5 | | 9=3x+3 | | 185x-7625=0 | | 5y+2y=6y+5 | | 6(4x-3)-10=2(7x-9) | | rs-to=us+v | | f(x)=x^3-512 | | 6(4x-3)-10=15x-14 | | 3x+15=6x+18 | | 4/3x-2/3=-5 | | 3-3.2y+2=14.6 | | sqrt(3x+4)+4-2x=0 | | Ax+bc=-c | | 2/3c=d | | 4/12*4/12 | | 3(2x-1)=2x-15 | | 6(4x-3)-10=2(7x-10) | | 4x+12=5x+20 | | 6(x-2)+5=3(2x-3) |