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 = 1.4 // - 1.4
1/x-1.4 = 0
1*x^-1 = 1.4 // : 1
x^-1 = 1.4
-1 < 0
1/(x^1) = 1.4 // * x^1
1 = 1.4*x^1 // : 1.4
0.71428571 = x^1
x = 0.71428571
x = 0.71428571
| 1/x=1.435 | | 9xr^2-5=607 | | -20=-6x+4(x-2) | | 25x=37x | | X^2-4.33X+18.88=0 | | 20x-7=3x | | f(7830)=50(3x+2)+230 | | 25x=37y | | x-8/4=6 | | 5p-30/2=6 | | 3/2a-26=-5 | | 16+8g=6g-12 | | 216=36 | | n/6/7=7/3/6/5 | | 4x^2+4xy+y^2=100 | | 7x=14-2x | | (x+9)(x-5)(x-2)=0 | | 4x+3x=7x+25 | | 7x=14-2 | | .1/.6=n/12 | | 3c+12=21 | | x(3+7)=30 | | f(15)=50(3(15)+2)+230 | | 9x=6+3x | | 2/3/n=4/7/1/2 | | 30-19.2= | | 4y=-3 | | (3x-6)/(m | | 61=7-6x | | .67/n=.57/.5 | | 4-z=y | | 13x-9=14x-8 |