-d-(-5)/d=14

Solution for -d-(-5)/d=14 equation:

D( d )

d = 0

d = 0

d = 0

d in (-oo:0) U (0:+oo)

-d-(-5/d) = 14 // - 14

-d-(-5/d)-14 = 0

5*d^-1-d-14 = 0

5*d^-1-1*d^1-14*d^0 = 0

(5*d^0-1*d^2-14*d^1)/(d^1) = 0 // * d^2

d^1*(5*d^0-1*d^2-14*d^1) = 0

d^1

5-d^2-14*d = 0

5-d^2-14*d = 0

DELTA = (-14)^2-(-1*4*5)

DELTA = 216

DELTA > 0

d = (216^(1/2)+14)/(-1*2) or d = (14-216^(1/2))/(-1*2)

d = (6*6^(1/2)+14)/(-2) or d = (14-6*6^(1/2))/(-2)

d in { (6*6^(1/2)+14)/(-2), (14-6*6^(1/2))/(-2)} 

d in { (6*6^(1/2)+14)/(-2), (14-6*6^(1/2))/(-2) }