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 in (0:+oo)
(1/2)*ln(x) = 0
1/2*ln(x) = 0 // : 1/2
ln(x) = 0
ln(x) = ln(e^0)
x = e^0
x = 1
| -20-4x=6x+16 | | 2(x+7)-3(5x-2)=5 | | 5i/1-i | | 2x-70+x-15=x+35 | | 9n^2-3n=0 | | Y(y-12)= | | 2x+20+2x-40=3x+20 | | 8x-9y=-50 | | 5ln(11/x) | | 11/2x=1/3 | | z-25=-8 | | (r-7)(r+7)= | | 36-4x=2x+60 | | 2x(x+4)(6x-3)=0 | | 3g+8g+4=0 | | (d-7)(d+7)= | | (d-49)(d-1)= | | Y/2=2y-18 | | 2/19y-12=0 | | 8lnx=-4 | | 5x^2=78x+119 | | 2(5x+2)(2x-3)= | | 3x+7=4x-21 | | (10x-2)(4x+3)= | | 4.75v+18.75=17.5 | | -6x-5y=3 | | 28+2y=12 | | 90=(15x+15x^2) | | a+30=17 | | 28y=11 | | 72r=34.5 | | x-3=85 |