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)
10*(18/x)-20 = 10 // - 10
10*(18/x)-20-10 = 0
180*x^-1 = 30 // : 180
x^-1 = 1/6
-1 < 0
1/(x^1) = 1/6 // * x^1
1 = 1/6*x^1 // : 1/6
6 = x^1
x = 6
x = 6
| 1+1*m*x-1*m*x^2-2*m^2+m^2x^2+1*x=0 | | B/5-6=28 | | j+8.22=9.5 | | 6y+1=2x+1 | | 36*x/6-7=11 | | -3/2x=4/9 | | 2w+5=3w+11 | | 2b-15=27 | | 6x=7y+30 | | m^2x^2-2m^2+2x+3-mx^2-(1-m)x-2=0 | | 0.2f=5.4 | | 3x^4-33x^4+21x^2= | | y/2-13=5 | | 12-5x=20x+7 | | 124/5-x=24 | | 4x^3-24x^2+16x+2=0 | | 7.8+x=0.8 | | 2x-72=78-8x | | 12-5x=20+7x | | 3-3*6+3=0 | | 3=3b-6 | | 3.5x-5+x-4=-1 | | a-5=7-5a | | 4(x-3)=-5x+24 | | 11x60x60/11x=5 | | 7x+7=3x+33 | | 2x^4-3x^3-4x^2-3x+2=0 | | 3x+8=5x-22 | | X-30x=70 | | 2x-44=76-8x | | 10t-12t+5.4=8 | | 2b-256/b^2 |