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)
166/x = 20.75 // - 20.75
166/x-20.75 = 0
166*x^-1 = 20.75 // : 166
x^-1 = 0.125
-1 < 0
1/(x^1) = 0.125 // * x^1
1 = 0.125*x^1 // : 0.125
8 = x^1
x = 8
x = 8
| 26=4x-3 | | y+1-6=-11 | | 6x-(2x+14)=8-(2x-7) | | 200m-75+57600=60600-175m | | y+1-6=11 | | 8/a-48=48/7a | | a+(-7)=5 | | 3(x+8)=2(x-6) | | 9y-3y=x | | 3s+7t=26 | | -4x+5=-16+10 | | X-73=156 | | 10(1-e^3k)=5 | | x+x+4+3x-4=180 | | -2(3x+2)=12 | | 8+2y=-y+5 | | 11x4/12 | | -2(3x+2)=-12 | | -4+3(-6n-1)=-2(4n+5)-2 | | -3x+7-4(x-1)=-(2X+4)-4X+4 | | 3x^3+11x^2+8x-4= | | 3+x=46 | | ((-8)x)+(9x)-21=(-12)-16 | | 4/9p-14=2 | | -5.73q=97.4 | | a(b+c)=ab+ac | | Y=p/m | | Y^9+2=-9 | | -3(2x+1)-6=9 | | 76+2x=228 | | 3x^2-4+1=0 | | P=rq+a |