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)
60/5 = 48/d // - 48/d
60/5-(48/d) = 0
60/5-48*d^-1 = 0
-48*d^-1 = -12 // : -48
d^-1 = 1/4
-1 < 0
1/(d^1) = 1/4 // * d^1
1 = 1/4*d^1 // : 1/4
4 = d^1
d = 4
d = 4
| -115=5 | | 7+3/4 | | -5n+10=3-4n | | -x-y=10 | | -15-19q=-20q | | -22-27u=28-127u | | y+2.5x=3 | | 700-50=x | | 6/(6b+5)=2/(b-5) | | 1/2(2x-10)=4 | | y+13=-1(x+3) | | 6x^2-2x-228=0 | | -4a-4+6a=-16 | | (x-3)/7=5/14 | | -14x+2(4x+24)=-30 | | (x-3)/7=5/4 | | 5n-29-3n=7n | | -3u=16-17u | | -4x^2-4x+24= | | w+2/7=5/14 | | 1+78+90000+56+45+789=x+7 | | 12/3.17 | | V^2=6v | | 4y=12-10x | | k/7=84 | | -12/2/5 | | 4p-3q=pr+9 | | 2(x-3)+5x=4x+9 | | 7-(-y)=21 | | 1/4+b=3/4 | | 2.9m=16.24 | | x-3/7=5/4 |