If it's not what You are looking for type in the equation solver your own equation and let us solve it.
D( d )
d = 0
d = 0
d = 0
d in (-oo:0) U (0:+oo)
30/d = 0.06 // - 0.06
30/d-0.06 = 0
30*d^-1 = 0.06 // : 30
d^-1 = 0.002
-1 < 0
1/(d^1) = 0.002 // * d^1
1 = 0.002*d^1 // : 0.002
500 = d^1
d = 500
d = 500
| 12x-7=14x+3 | | -4(2+7)=2x-8 | | 33a(3+7a)=7(3a+2) | | 9(4x+4)=12(3+3x) | | 3(x+2.29)=2x | | a(bc)=(ba)c | | 8(x-8)-8(-2x+7)=-x-5x | | 6-4(-7x-6)=-12 | | 9i/6-7i | | 1+5x-4+6-x=7+3x+2 | | 90=(8x-8)+2x | | 9(-40x+14)=-9(-29-x) | | 8i/(7-6i) | | A+3456=5378 | | 3.6x-28=2.1x+5 | | x+4y=4x | | 6y=6x+12 | | 7x^2-35x-8=0 | | 6x-13-4x-25=2 | | (4x-8)+(7x-9)= | | 7y=66 | | 17-3x=2x+3 | | r-8=12+2r | | 1/6+1/8=1/x | | 5x^2-35x=5x-8 | | (74/45-4/9)(-2/3)=-4/5 | | 6x+5(0)=10 | | X=.18+.10x | | (-3xy)(-6x^2y)= | | 5x^2=6x+3 | | y-56=100 | | ((4x^8y^8)^(1/2))/((8x^-9y^3)^(-1/3)) |