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+6 = 0
4*x+8 = 0
2*x+6 = 0
2*x+6 = 0
2*x+6 = 0 // - 6
2*x = -6 // : 2
x = -6/2
x = -3
4*x+8 = 0
4*x+8 = 0
4*x+8 = 0 // - 8
4*x = -8 // : 4
x = -8/4
x = -2
x in (-oo:-3) U (-3:-2) U (-2:+oo)
5/(2*x+6) = 6/(4*x+8) // - 6/(4*x+8)
5/(2*x+6)-(6/(4*x+8)) = 0
5/(2*x+6)-6*(4*x+8)^-1 = 0
5/(2*x+6)-6/(4*x+8) = 0
(5*(4*x+8))/((2*x+6)*(4*x+8))+(-6*(2*x+6))/((2*x+6)*(4*x+8)) = 0
5*(4*x+8)-6*(2*x+6) = 0
8*x+4 = 0
(8*x+4)/((2*x+6)*(4*x+8)) = 0
(8*x+4)/((2*x+6)*(4*x+8)) = 0 // * (2*x+6)*(4*x+8)
8*x+4 = 0
8*x+4 = 0 // - 4
8*x = -4 // : 8
x = -4/8
x = -1/2
x = -1/2
| 5-2(x-7)=4(x+5)+1 | | x/4+2=x/2+1/3 | | 5/(2x+6)=21/(4x+8) | | 3x-17(3)=192 | | 4+3(x+1)=3x-5 | | 10=7+7 | | 2u+5=8 | | 5w^2-25=17 | | 63+9y=-63 | | 23+8B=-402 | | 3.5x=14-0.5+4 | | -8x+9=-2 | | sqrt(6z+10)+8=z+7 | | (8x^3-10x^2-25x)/(4x^2+5x)=0 | | 5x-25=60 | | x+2(x+5)=15 | | 27+y=3+5y | | 5/2x+6=21/4x+8 | | -(4x-5)-(5x-5)+2=-7(x-1)-(7x+8)+3 | | 8x^3-10x^2-25x/4x^2+5x=0 | | 3x=-2(-3x-4)+1 | | 3s-2/2=s | | 6=-4+x | | -5w-6=18 | | 23-x=13+2x | | (8/3)=x-1(1/3) | | -4(0.1x+0.4)-0.6=-0.2 | | 15n^2+28n+5=0 | | 35.84=7g+3.99 | | X-4/10=7/5 | | mx^2+12x+9=0 | | -x+5=26 |