If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
x = 0
x = 0
x = 0
x in (-oo:0) U (0:+oo)
1/x = 5/45 // - 5/45
1/x-(5/45) = 0
1/x-1/9 = 0
1*x^-1 = 1/9 // : 1
x^-1 = 1/9
-1 < 0
1/(x^1) = 1/9 // * x^1
1 = 1/9*x^1 // : 1/9
9 = x^1
x = 9
x = 9
| y+2x=2 | | -3*10= | | 9x+4=14x-3 | | -5(3x+4)=10 | | -7x-2=10 | | 2.5x+2.79=10.21 | | 7(x)+5=6(x) | | x-4/3=11/12+3/4x | | 3w+2(2w-6)+8=3 | | y=(100)/(2+9e^3x) | | 4(2v-4)-3v=4 | | -6/5x=8 | | 7/3+10/3y=3y-2 | | 1/2+x=5/4 | | -0.1x+6.52=-0.5x+1.72 | | x-3/4=11/12+3/4x | | 6x^2-11x-5=0 | | 2(x+8)/3 | | 35z^2-44z-7=0 | | 7(5-8)+[6+4(8-9)]=x | | 2x+-8=3x+5 | | 18x^2-x+75=0 | | 6a-9a= | | (63-9x)/(x+3) | | F+6=-8 | | 3(x)-4=x(5) | | 2.2+0.4x=0.6 | | 12x^2y-18x^2-18y+27= | | 4x^2-1-8x=0 | | 16u-6u=20 | | -3x^2+24x+144=0 | | 3(4u+2)=-30 |