If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( s )
s = 0
s = 0
s = 0
s in (-oo:0) U (0:+oo)
18/s = 1/6 // - 1/6
18/s-(1/6) = 0
18/s-1/6 = 0
18*s^-1 = 1/6 // : 18
s^-1 = 1/108
-1 < 0
1/(s^1) = 1/108 // * s^1
1 = 1/108*s^1 // : 1/108
108 = s^1
s = 108
s = 108
| 2x-5=1+3x | | x+4.5=x+3.5 | | (p-3)+(p+7)= | | 10+bc+15=2c-40 | | 2y=y+36 | | 9x^2+240x-1000=0 | | 4x+[-8]=20 | | 8x-4=7x-3 | | 2x=(x+y+5) | | 13x=13x-1 | | 8(7+2y)-4=196 | | 6c+11=83 | | 20=u-15 | | 8x+3=100 | | 4(3x-2)=4x+72 | | y/-2-8=-12 | | Ln6/ln3 | | 6x+-48+4x+38=180 | | 9a-53=8a-43 | | 6x-48+4z+38=180 | | 3/4*x-3=-9 | | 4(5+4x)-5=127 | | 6x-5+10x-1=90 | | 2x-8=8+x-11+3 | | 8x^2+6x-16=0 | | 5a+19=a+31 | | 5x+179+7x+177=180 | | X+5=39-3x | | 5m^2+9=0 | | 4(5+4x)-5=140 | | 2t=t+31 | | 7x=20+x |