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)
4/x-((2/3)*x)-3-1 = -5/6 // + -5/6
4/x-((2/3)*x)-(-5/6)-3-1 = 0
(-2/3)*x+4/x+5/6-3-1 = 0
4*x^-1-2/3*x^1-19/6*x^0 = 0
(4*x^0-2/3*x^2-19/6*x^1)/(x^1) = 0 // * x^2
x^1*(4*x^0-2/3*x^2-19/6*x^1) = 0
x^1
(-2/3)*x^2+(-19/6)*x+4 = 0
(-2/3)*x^2+(-19/6)*x+4 = 0
DELTA = (-19/6)^2-(4*4*(-2/3))
DELTA = 745/36
DELTA > 0
x = ((745/36)^(1/2)-(-19/6))/(2*(-2/3)) or x = (-(-19/6)-(745/36)^(1/2))/(2*(-2/3))
x = -3/4*((745/36)^(1/2)+19/6) or x = -3/4*(19/6-(745/36)^(1/2))
x in { -3/4*((745/36)^(1/2)+19/6), -3/4*(19/6-(745/36)^(1/2))}
x in { -3/4*((745/36)^(1/2)+19/6), -3/4*(19/6-(745/36)^(1/2)) }
| -4f+2(3f+3)=9 | | (5x+7)(4x-1)= | | -4x-12x-3x=40 | | (6x+7)(4x-1)= | | 3x-12-6x+3=19-3x-1-3x | | 200+6n=500-6m | | h^2+5h=295 | | -2*6+4= | | 3p+12=7p+4 | | -7(-6-6/7x)=12(x-7/2) | | 225(5x+22)= | | 11a+7=20 | | -6(n+1)=-14-7n | | 4(-x+4)=17 | | -3(6k-3)=18k-14 | | 1914=9/5C | | 15-x/6=-8/3 | | 12=3x^2-5x | | -3x-9y=162 | | 7/6-r/9 | | 5(1-p)+7(p-8)=-59 | | 4x^2+9y^2-40=0 | | a/8=6/11 | | 7x+7(2x+14)=-112 | | x/0.4-2x | | 5(t+2)-2=6t-8 | | 7/11=6/r | | 3x-4(7+1y)=15 | | 8=-2x^2+8x | | 5y-3x=-33 | | 11/12=7/x | | .17x-.07(x-8)=30.4 |