If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( v )
v = 0
v = 0
v = 0
v in (-oo:0) U (0:+oo)
9/v-8 = 0
9*v^-1 = 8 // : 9
v^-1 = 8/9
-1 < 0
1/(v^1) = 8/9 // * v^1
1 = 8/9*v^1 // : 8/9
9/8 = v^1
v = 9/8
v = 9/8
| 9rw=81 | | y=x^3-5x^2+8x+2 | | X^2+2x=47 | | 3(2x-18)=60 | | 36x+288+12x+336=168 | | -0.10(26)+0.09x=0.05(x-18) | | g(p+4)=2x^2+2x+11 | | 7.(3x-1)=14 | | 5x+2/4x+2x-30=0 | | 7.(3x=1) | | 1/3*1.527 | | X+[x(.06)]=100 | | (6-y)/(y-6)(6y) | | 9x-2=130 | | 9+100b^2=58 | | 5(2t-1)+3= | | 12x+8x+8-15=-2(3x-82) | | 16/7a-1/2a | | sinx=1/120 | | -0.10(21)+0.85=0.05(x-10) | | -10x-8/3-4x=6x | | 12g^2+14g-40=90 | | x+2*3=67 | | x+2.3=67 | | 20t^3-13t=15 | | ln(2x)-ln(x-3)=1 | | 0.18y+0.06(y+2000)=2040 | | 5=-3/w-5 | | 4x+15=50-x | | 2x^2-8x-x^2+9x=56 | | 48x=168 | | 2x^2-8x=56 |