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)
(1/3)*x-(5/x)-6+2 = 12 // - 12
(1/3)*x-(5/x)-12-6+2 = 0
(1/3)*x-5*x^-1-12-6+2 = 0
1/3*x^1-5*x^-1-16*x^0 = 0
(1/3*x^2-16*x^1-5*x^0)/(x^1) = 0 // * x^2
x^1*(1/3*x^2-16*x^1-5*x^0) = 0
x^1
(1/3)*x^2-16*x-5 = 0
(1/3)*x^2-16*x-5 = 0
DELTA = (-16)^2-(-5*4*(1/3))
DELTA = 788/3
DELTA > 0
x = ((788/3)^(1/2)+16)/(2*(1/3)) or x = (16-(788/3)^(1/2))/(2*(1/3))
x = 3/2*((788/3)^(1/2)+16) or x = 3/2*(16-(788/3)^(1/2))
x in { 3/2*(16-(788/3)^(1/2)), 3/2*((788/3)^(1/2)+16)}
x in { 3/2*(16-(788/3)^(1/2)), 3/2*((788/3)^(1/2)+16) }
| 0.20x+0.45(50)=24.5 | | 49x^2+28x-6=0 | | -6x^2+4=0 | | 28a=-168 | | 24=4(5)+3s | | 4/x+12/x^2=5 | | 6a+30=6(4a-1) | | 1/8=7/2h | | 100.48=3.14*d | | 6x-7=5x-19 | | -2x-23=-4(x+3)+3 | | 50.24=3.14*d | | -8x-8(6x-1)=x+8 | | 24=4a+3b | | -20-5x=-4(x+3)+3 | | 4(-3x+5)=5 | | -2r-39=2-5(7r-5) | | -39-6n=-5(1+8n) | | -8(-k-3)-(-2)-2k=k-9 | | 24=6x+3 | | (12t^6-8t^8)/(2t^3) | | (4u-7)(6-u)=0 | | -38+4k=2(-4-3k) | | -36+4k=2(-4-3k) | | 5(8x-4)+3x=-3 | | .25x=-1.5x+3 | | -18-8x=6(8-5x) | | 7(2+2a)+3=6a+33 | | 2/7-3x=9/7 | | 0.66X-5=X-3 | | 8x+6-6x=2 | | 602=9x+332 |