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+2 = 0
4*x+2 = 0
4*x+2 = 0
4*x+2 = 0 // - 2
4*x = -2 // : 4
x = -2/4
x = -1/2
x in (-oo:-1/2) U (-1/2:+oo)
9/2 = 13/(4*x+2) // - 13/(4*x+2)
9/2-(13/(4*x+2)) = 0
9/2-13*(4*x+2)^-1 = 0
9/2-13/(4*x+2) = 0
(-13*2)/(2*(4*x+2))+(9*(4*x+2))/(2*(4*x+2)) = 0
9*(4*x+2)-13*2 = 0
36*x-8 = 0
(36*x-8)/(2*(4*x+2)) = 0
(36*x-8)/(2*(4*x+2)) = 0 // * 2*(4*x+2)
36*x-8 = 0
36*x-8 = 0 // + 8
36*x = 8 // : 36
x = 8/36
x = 2/9
x = 2/9
| 7x-14/4-x^2 | | 16w^5x+2w^5x^5y^6=0 | | 9/2=13/4x+2 | | 5(x+4)=4(x+7) | | 30/3x30/3 | | -3(m-2)=42 | | 3y+3z=-9 | | 16/(x^2+8x+64)=8 | | 4x^2+5x+1.25=0 | | 9=w/6 | | 16/(x+8)^2=8 | | 9x+2y=46 | | (3q-5r)(q+3r-1)= | | y^2-8y=-11 | | 60=(2x+5)4 | | 5(3.1-1.6y)+8(y)=15.50 | | 0.90x+.05(16-x)=.10(110) | | x^2+36=2x^2 | | 5x+8y=15.50 | | 5(2.9-1.6y)+8(y)=14.50 | | 5x+8y=14.50 | | 2a^2+a-90=0 | | 4x+27=63 | | 3sin(x)-3cos(x)=0 | | 3x(x+2)+x=2x(x+10)+5(x-10)-27 | | 1(4-5d)=-34 | | 3x^2(x+2)+x=2x(x+10)+5(x-10)-27 | | 3(6)=2y | | 66w=24 | | 5ln(4x+8)-3=0 | | 611w=24 | | 2n/5-23n/20 |