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-3 = 0
x = 0
x = 0
x-3 = 0
x-3 = 0
x-3 = 0 // + 3
x = 3
x in (-oo:0) U (0:3) U (3:+oo)
(1/x-2-1)/(x-3) = 0
(x^-1-3)/(x-3) = 0
1*x^-1 = 3 // : 1
x^-1 = 3
-1 < 0
1/(x^1) = 3 // * x^1
1 = 3*x^1 // : 3
1/3 = x^1
x = 1/3
x = 1/3
| a^2b^5/a^5b^4 | | 8+X/-4=5 | | 9(z+2)-2(z-2)=2(z-1)+4(z-1) | | 9k+3.3=k+8 | | (2x^2-3)/(5-x) | | 9y-7y=12 | | -102=-2(5+6m)-8 | | d=300-48t | | -5(5+5r)=35+5r | | 4x+7.4=22 | | 55x=0 | | (7m+3)+(8m-18)=90 | | -5g+10=75 | | n-4=25 | | 2k+2=k+6 | | 3/w=1 | | w^2=29 | | -2(x-4)+9x=4x-7 | | 7+8X=31 | | (7m+3)=(8m-18) | | 5(1.2k+6)=7.16+34.4 | | 16/y=-4 | | 4x^3-12x^2+16x-16=0 | | 2x=1.1(x+25.2) | | 9u-6v+21= | | k^2+12=7k | | 5(3x-9)-4=5(x-3)+26 | | 4x+4y=148 | | 4b+9b=20+6 | | 3h+4.2=21 | | 2sin(x)/(x) | | 2x+11(-x+690)=2064 |