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)
26/x = 117/9 // - 117/9
26/x-(117/9) = 0
26/x-13 = 0
26*x^-1 = 13 // : 26
x^-1 = 1/2
-1 < 0
1/(x^1) = 1/2 // * x^1
1 = 1/2*x^1 // : 1/2
2 = x^1
x = 2
x = 2
| k-3k+12=0 | | (5x+2w)(6x-7w)=n | | (40+15)+0.25=45+0.35m | | 7mn-3n=0 | | 20-5z+10z=15z-10 | | 3(1-t)+5=3(1-t)-7 | | 9-5x=-(x+8)-3 | | -30-3n=(n+2) | | 7x+6=6x+12 | | 4.2y-1.4x=2.1 | | x+18x+81=0 | | -2(2x+10)=2(1-2x) | | -5x(-2x+7)=55 | | 3x-(3/8)=(1/8)+2x | | 1=41/2-11/3P | | 85/6-43/4 | | -4p+8p=-12 | | 3+2a+7= | | 40+15+0.25=45+0.35m | | 1/2x^2+3x+10=0 | | (c-5d)(c-8d)=n | | 6((x+1)/8-(2x-3)/16)=3(3/4x-1/4)-3/8(3x-2) | | =(-y^5)(y^2) | | 8x+4(8+7x)=140 | | 7y=33-44 | | 3(n+4)=1/2n-8 | | 10=x-2/5 | | (5/3)*(y+2)=(1/2)-y | | (11x+825)+(89)=5x+488 | | 3x-3=7x-4 | | =(3x^12)(2x^3) | | 3/7*7/1 |