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)
20/X = 19 // - 19
20/X-19 = 0
20*X^-1 = 19 // : 20
X^-1 = 19/20
-1 < 0
1/(X^1) = 19/20 // * X^1
1 = 19/20*X^1 // : 19/20
20/19 = X^1
X = 20/19
X = 20/19
| -n(5-2n)= | | T^2-3at-7=0 | | 3r^3/4r^2 | | 7y(2x+3y-6)= | | 4x(2-7x)= | | X^4-3ax^2-7=0 | | n(2m+6)= | | 2a+(a+9)=0 | | K(k+5)= | | X^2+(m+2)x+2m=0 | | -18-3X-X^2=0 | | 506.25b^2-600b+100=0 | | b^2-1.185b+0.197=0 | | 3y=11y-10 | | 10v^3+36v^2-70v=0 | | 5f+2=3f+5 | | 0.5x+3=-1 | | 10c^2-27c+5=0 | | 20n+3(4n-7)= | | 5(x+2)=2x-5 | | 7/12-2/6 | | 2(x+6)+4= | | 5(x+3)+4=3x+17 | | f(x)=115x+49 | | (8n+20)= | | 8c^3+18c^2-56c=0 | | 2(4x-y+10)= | | 9(7+6t)= | | 7(3n+5)= | | 72+68+82+X=73 | | 15(k-2)= | | 4x+11=-85-5x |