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-3 = 0
2*v-6 = 0
v-3 = 0
v-3 = 0
v-3 = 0 // + 3
v = 3
2*v-6 = 0
2*v-6 = 0
2*v-6 = 0 // + 6
2*v = 6 // : 2
v = 6/2
v = 3
v in (-oo:3) U (3:+oo)
4-5/(2*v-6) = 6/(v-3) // - 6/(v-3)
4-5/(2*v-6)-(6/(v-3)) = 0
4-5/(2*v-6)-6*(v-3)^-1 = 0
4-5/(2*v-6)-6/(v-3) = 0
(-5*(v-3))/((2*v-6)*(v-3))+(-6*(2*v-6))/((2*v-6)*(v-3))+(4*(2*v-6)*(v-3))/((2*v-6)*(v-3)) = 0
4*(2*v-6)*(v-3)-5*(v-3)-6*(2*v-6) = 0
8*v^2-17*v-48*v+51+72 = 0
8*v^2-65*v+123 = 0
8*v^2-65*v+123 = 0
8*v^2-65*v+123 = 0
DELTA = (-65)^2-(4*8*123)
DELTA = 289
DELTA > 0
v = (289^(1/2)+65)/(2*8) or v = (65-289^(1/2))/(2*8)
v = 41/8 or v = 3
(v-3)*(v-41/8) = 0
((v-3)*(v-41/8))/((2*v-6)*(v-3)) = 0
((v-3)*(v-41/8))/((2*v-6)*(v-3)) = 0 // * (2*v-6)*(v-3)
(v-3)*(v-41/8) = 0
( v-3 )
v-3 = 0 // + 3
v = 3
( v-41/8 )
v-41/8 = 0 // + 41/8
v = 41/8
v in { 3}
v = 41/8
| (2+3x)+62=90 | | (2+3x)+62=360 | | (2+3x)+62=180 | | 3(x+1)-2(x-1)=9 | | 5/3-1/6 | | x/7=47 | | x/-3=46 | | (x-24)+29+296=360 | | 4(2x-1)=2(3x-2) | | (3a/4)+5=(5a/6)+2 | | 3a/4+5=5a/6+2 | | (3x+18)93=180 | | (x+1)(x+11)=-14 | | 9+4lnx=14 | | w-4=3 | | (x^2-9)/(x+4)(x+3)=0 | | (2n+6)/3=((9n-4)/5)-n | | -2+15=17x-4-16x | | 5a=4a-7 | | 10=0.3521x^5-7.5096x^4+72.227x^3-329.33x^2+674.35x-412.13 | | X^3-x^2-2x+5=0 | | 7x+18=67 | | 0.1x^2-0.2x-0.1=0 | | (x+4)(x+4)=88 | | x-(2x+1)-8+3=3-(3x+3) | | 10x+16=86 | | 3x+16=37 | | (10n)7= | | 8-(2x+1)-8+3=3-(3x+3) | | 98-9x=4x+7 | | 3.1+(8.6+m)= | | P=5h+5u |