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)
7/x-(2/x)-3-2 = 0
7/x-2*x^-1-3-2 = 0
5*x^-1 = 5 // : 5
x^-1 = 1
-1 < 0
1/(x^1) = 1 // * x^1
1 = 1*x^1 // : 1
1 = x^1
x = 1
x = 1
| b+6=-11 | | 3y-2+2x+8+4x-2y-8=180 | | 4(n-5)-(9-n)= | | 3y-2+2x+8+4x+-2y-8=180 | | 1/3x=1/4=-5 | | 9+x=5x-7 | | -15=-9+n | | x+9=79 | | 20x-35=25 | | a=2(l+w)*w | | 119.31=82x | | 653+187= | | (-2)^3x^5(yz)^3/(5)^2x^2y^8z | | (10u^4-16u^3)/2u^2 | | 15x-y-5(3x-2y+5z)= | | log[3](9-4x)=4 | | 7*In(x)=2.4 | | 27^(4/3) | | 1/3y-9=1/8y | | 3y-15+108=180 | | 93-58=x | | 3y-5+108=180 | | Y^2/7y^2 | | -8-7x=5x-10 | | 2x=18-6 | | 13.5=15x | | 8x-4=26-2x | | 5x=36-2x | | x^2+y^2-12y+27=0 | | 41=3u+11 | | 2x+7x-(4x-6)= | | X+forx=7 |