If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
4*x+1 = 0
4*x+1 = 0
4*x+1 = 0
4*x+1 = 0 // - 1
4*x = -1 // : 4
x = -1/4
x in (-oo:-1/4) U (-1/4:+oo)
(2*x)/(4*x+1) = (-1/2)*x // - (-1/2)*x
(2*x)/(4*x+1)-((-1/2)*x) = 0
(2*x)/(4*x+1)+(1/2)*x = 0
(2*x)/(4*x+1)+x/2 = 0
(2*2*x)/(2*(4*x+1))+(x*(4*x+1))/(2*(4*x+1)) = 0
x*(4*x+1)+2*2*x = 0
4*x^2+5*x = 0
4*x^2+5*x = 0
x*(4*x+5) = 0
4*x+5 = 0 // - 5
4*x = -5 // : 4
x = -5/4
x*(x+5/4) = 0
(x*(x+5/4))/(2*(4*x+1)) = 0
(x*(x+5/4))/(2*(4*x+1)) = 0 // * 2*(4*x+1)
x*(x+5/4) = 0
( x+5/4 )
x+5/4 = 0 // - 5/4
x = -5/4
( x )
x = 0
x in { -5/4, 0 }
| x-3/2*2=-2 | | 3+4x=8+x | | 0=-100+3n | | 2x/(4x+1)=-1/2x | | 8a+y=16 | | 15w-8=5w+47 | | 2x^2-13=5 | | x-3/2*1=-2 | | p=5n-(100+2n) | | -10x+7y=-5 | | 2(n-5)=16 | | 14q-15=6q+57 | | X+x-7=15/x | | 2x-56=56-2x | | (4x)+x=5 | | 6e-4=2e+16 | | 7234.56=3.14*72 | | 2-10x-4y=0 | | 2x+2y+z=1 | | 34-4y=16 | | -6a-8b/2a-9a+10b/2a | | (2n+11)=31-3n | | 20-0.20d=0.3d+16 | | 4y-34=16 | | -4y-34=16 | | -4(y-7)=2y-38 | | 4y+34=16 | | 2x-86=86-2x | | -4y+34=16 | | 65x-36= | | y=15-2.5x | | -7(b+1)=5(0-2) |