3/d-2/5

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Solution for 3/d-2/5 equation: 


D( d )

d = 0

d = 0

d = 0

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

3/d-(2/5) = 0

3/d-2/5 = 0

3*d^-1 = 2/5 // : 3

d^-1 = 2/15

-1 < 0

1/(d^1) = 2/15 // * d^1

1 = 2/15*d^1 // : 2/15

15/2 = d^1

d = 15/2

d = 15/2

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