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/6.1 <= 0
x/6.1 <= 0
x/6.1 <= 0
0.16393443*x+0 <= 0 // - 0
0.16393443*x <= 0 // : 0.16393443
x <= 0/0.16393443
x <= 0
x in (0:+oo)
ln(x/6.1) = 15.66 // - 15.66
ln(x/6.1)-15.66 = 0
ln(x/6.1)-15.66 = 0 // + 15.66
ln(x/6.1) = 15.66
ln(x/6.1) = ln(e^15.66)
x/6.1 = e^15.66
x/6.1-e^15.66 = 0
0.16393443*x-e^15.66 = 0 // + e^15.66
0.16393443*x = e^15.66 // : 0.16393443
x = (e^15.66)/0.16393443
x = 6.09999986*e^15.66
x = 6.09999986*e^15.66
| 3(a-6)-17a=66 | | 0.03(6c-84)=-0.9(c-2) | | 35/x-7-3=5x/x-7 | | 3x-20=10-x | | 6x+45=5-4x | | 2x+8=5x+23 | | 7+11e=-23+e | | x^2-xgh+6gh=0 | | -9+-x+5-x=2x+4-15+x | | 2e+26=12e-94 | | 11(x-3)=-6+1 | | 4n=6(n-2) | | 4.1q-1.8-4.8q=1.7q-1.1 | | 5-(2y)=3 | | 12-x=15-1.5x | | x^2-x(2g-3h)-6gh=0 | | 2e-4=e+3 | | x/7=(5) | | 3=-3e+36 | | 2-senx=0 | | 5x^2+4x-17=19-20x | | 2(n-3)+9=33 | | 3y+1=5y-x | | 4x^4+36x^3+57x^2+225x+200=0 | | 4cot^2(x)-12=0 | | 41.48=5s+3.73 | | x+14y=15 | | 1x/9=1043 | | 3[3x-5(y-2)]= | | 5x-6/2-1=1 | | hx+p=nx+dforx | | 0=12.1t+0.5(-9.8)t^2 |