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)
6/3 = 5/v // - 5/v
6/3-(5/v) = 0
6/3-5*v^-1 = 0
-5*v^-1 = -2 // : -5
v^-1 = 2/5
-1 < 0
1/(v^1) = 2/5 // * v^1
1 = 2/5*v^1 // : 2/5
5/2 = v^1
v = 5/2
v = 5/2
| -13=2x+7 | | -2x-22=-4x+16 | | 5x+10(-1+14)=80 | | -3(5x+1)=-3 | | 0.52(12x+6)=7 | | 40-21x=48 | | 12p-28=7 | | -1.2-29/20 | | 9-4n^2=0 | | 9x-4+3=2x-5 | | 10-(8-8n)+14n=-4+12(n+1) | | 6n^2+47n-8= | | -10x-195=2x+81 | | 18z^2+33z+14=0 | | 3x-9x^2+10=0 | | 2x^3-8x^2-72x=0 | | w/2=-1/22 | | 1-18z+9=-19z+17 | | 21y^2+8y-4=0 | | 2xsquared-72=0 | | 10x^2+13=2x+6 | | 6x+8-7x=4 | | -6s-14=-4s+10 | | 12.57+w=23.57 | | -22+7x=6+9x | | 8x^2+1=17 | | 2(-2)-3(-2+3)+5= | | -3-6x+4x=-25 | | XY=2X-4 | | [4x-4]+2=18 | | ln-3b=ln(-2b+9) | | 12n-4=13n |