If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( x )
2*x = 0
2*x = 0
2*x = 0
2*x = 0 // : 2
x = 0
x in (-oo:0) U (0:+oo)
(19/18)*X-(1/(2*x))-19 = 0
(19/18)*X+(-1/2)*x^-1-19 = 0
-1/2*x^-1 = -(19/18*X-19) // : -1/2
x^-1 = -2*(19-(19/18*X))
-1 < 0
1/(x^1) = -2*(19-(19/18*X)) // * x^1
1 = -2*x^1*(19-(19/18*X)) // : -2*(19-(19/18*X))
1/(-2*(19-19/18*X)) = x^1
x = 1/(-2*(19-19/18*X))
x = 1/(-2*(19-19/18*X))
| 8v^2+6v+1=0 | | (19/18X-19)-1/2x | | 8(x+8)+3=8x+3 | | 1/2-2/3x=1/4 | | X+30+2x=360 | | 5.2x+5=4.2x | | 3/8/15/16 | | -2(4y-2)-y=-2(y-4) | | -9v^2+21v-10=0 | | X+30+2x=36 | | x^2+8x+8=180 | | c/6+79 | | 3(x+1)/6=2x-4 | | X+30+2/5x+3/5x+x=360 | | -1/4(x-8)+1/2(x+2)=x-0 | | -6/-3= | | 0.03(7t+2)=0.21(t-1)+0.27 | | -10/3*x=30 | | 2x-1+x+5+x=180 | | 3/4=y/5 | | 12*2/3 | | 3/4=5/y | | x/2-2=x/7+3 | | -10/3x=30 | | 9x^2-63x=0 | | 9y^2+16y+7= | | 19-2=-21 | | 8x^2+18x+13=0 | | 2x^3-5x^2-12x+30= | | 1-1/4=y/5 | | (16b-3)-5(3b+1)=-3 | | x^2-19-42=0 |