If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
2*x+1 = 0
3*x = 0
2*x+1 = 0
2*x+1 = 0
2*x+1 = 0 // - 1
2*x = -1 // : 2
x = -1/2
3*x = 0
3*x = 0
3*x = 0 // : 3
x = 0
x in (-oo:-1/2) U (-1/2:0) U (0:+oo)
(x-5)/(3*x)+6/(2*x+1) = 0
((x-5)*(2*x+1))/(3*x*(2*x+1))+(3*6*x)/(3*x*(2*x+1)) = 0
(x-5)*(2*x+1)+3*6*x = 0
2*x^2+9*x-5 = 0
2*x^2+9*x-5 = 0
2*x^2+9*x-5 = 0
DELTA = 9^2-(-5*2*4)
DELTA = 121
DELTA > 0
x = (121^(1/2)-9)/(2*2) or x = (-121^(1/2)-9)/(2*2)
x = 1/2 or x = -5
(x+5)*(x-1/2) = 0
((x+5)*(x-1/2))/(3*x*(2*x+1)) = 0
((x+5)*(x-1/2))/(3*x*(2*x+1)) = 0 // * 3*x*(2*x+1)
(x+5)*(x-1/2) = 0
( x+5 )
x+5 = 0 // - 5
x = -5
( x-1/2 )
x-1/2 = 0 // + 1/2
x = 1/2
x in { -5, 1/2 }
| -1j=3j+12 | | a+9a=-100 | | 4x+67=190 | | x/2+x/3=25 | | -7x+92=-x+2 | | -9x+7=-2x | | 22+16t^2/4t=3x3t-8 | | 5x-x=92 | | 7x-9=9x-8 | | 7+6x=4x-17 | | 5*4+3b= | | 13/4+51/4=X | | 3x+x=96 | | 3a+4b=2c | | 3x+2+95= | | -9x-24=-x | | 6x-29=4x+3 | | 4x+101=14x-9 | | x(4x-4)(2*4-6)=0 | | 4x+66=-6x+6 | | 4x+66=-6+6 | | 5x+4/x-4 | | 20u^2v-10uv^2= | | 2.4y-1.5x=3 | | 6-7x=43-14x | | 2=m(0)+2 | | 2d+4n-4m+7n= | | -2x-1=7x-4 | | 4x-34=6x+2 | | 8=m(4)+4 | | 3x+[-5-(x+3)]=8x(-5x-9) | | 3x+55=-5x+7 |