If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
5*x-2 = 0
x = 0
5*x-2 = 0
5*x-2 = 0
5*x-2 = 0 // + 2
5*x = 2 // : 5
x = 2/5
x = 0
x = 0
x in (-oo:0) U (0:2/5) U (2/5:+oo)
(3*x)/(5*x-2)+1/x = 0
(3*x*x)/(x*(5*x-2))+(1*(5*x-2))/(x*(5*x-2)) = 0
1*(5*x-2)+3*x*x = 0
3*x^2+5*x-2 = 0
3*x^2+5*x-2 = 0
3*x^2+5*x-2 = 0
DELTA = 5^2-(-2*3*4)
DELTA = 49
DELTA > 0
x = (49^(1/2)-5)/(2*3) or x = (-49^(1/2)-5)/(2*3)
x = 1/3 or x = -2
(x+2)*(x-1/3) = 0
((x+2)*(x-1/3))/(x*(5*x-2)) = 0
((x+2)*(x-1/3))/(x*(5*x-2)) = 0 // * x*(5*x-2)
(x+2)*(x-1/3) = 0
( x+2 )
x+2 = 0 // - 2
x = -2
( x-1/3 )
x-1/3 = 0 // + 1/3
x = 1/3
x in { -2, 1/3 }
| (1/w-3)-(1/5w-15)=4/5w-15 | | 3x-22=8x-18 | | (1/w-1)-(3/4w-4)=1/4w-4 | | (1/s+a)+1/s+b=1/c | | (1/r)=(1/2)+(1/3) | | (1/p)+(12/(p-18))=p/(p-18) | | 12x=7x+40 | | (1/p)+(1/p-1)=-2 | | (1/p)+(1/(p-1))=-2 | | (1/m)+(1/2m)=1/2 | | (1/j)+(1/b)=(1/f) | | 15y^2-4y-4=0 | | 4-(-1)=g | | (1/a)+1=(6/a) | | (1/9-3x)(1/5+2x)=0 | | (1/9*x)+(1/10*x)=15 | | (1/9)x=600,000 | | (1/9)x-1=(1/2)x+(1/6) | | m=(-1)-4 | | (1/9)x-12=24 | | 0.8(5x+15)=2.6-(x-3) | | (1/9)3t+5=(1/243)t-6 | | (1/9)-(2/3)b=1/18 | | (1/9)(3t-9)=(10/9)t-(t+9/18) | | -10=4-a | | (1/8x)+(2/7x)=1 | | (1/8x)+(2/5x)=1 | | (1/84)x+(3/7)=p | | (1/8)x-(2/3)=(5/6) | | (1/8)-(3/4)x=(1/16) | | (1/7x)-(1/6)=(-6/7x)-(1/3) | | (1/7)x-4=(5/7)x+14 |