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)
9/x = 2/6 // - 2/6
9/x-(2/6) = 0
9/x-1/3 = 0
9*x^-1 = 1/3 // : 9
x^-1 = 1/27
-1 < 0
1/(x^1) = 1/27 // * x^1
1 = 1/27*x^1 // : 1/27
27 = x^1
x = 27
x = 27
| 4(h-15)=16 | | (8/x^2.5)=0.5 | | I+14=28 | | X(2x-7)=25 | | 3(x+5)-3=75-4x | | p-2(p+3)=2p-3(p+2) | | 18=3(b+2) | | (8/(x^2.5))=0.5 | | 24(0.25)=-10(-0.25)+4 | | 4cos(7x)-4sin(14x)=0 | | y/2-2=4 | | 7x+9x+20x=180 | | 6y+y=14 | | 82-18x=28 | | 17x-7=12x+3 | | 17x-7=12x | | 2x^(3/2)=6 | | 3(2x-5)=2x-1 | | 12-3a=a+4 | | 36/5=72/t | | 2a-11=1a | | 13x+16y=11 | | 3=3(s-18)-1 | | 6x+6=-8 | | 9(x-4)=73 | | 2/3.8= | | r/-24=185=195 | | 2(7x+4)=-48 | | x+(x^2-3)=0 | | 2x+5+5x=3(4x-5) | | 2x+2x=753211134 | | 3x^(3/2)=12 |