3/d+3=4/d+12

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Solution for 3/d+3=4/d+12 equation: 


D( d )

d = 0

d = 0

d = 0

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

3/d+3 = 4/d+12 // - 4/d+12

3/d-(4/d)-12+3 = 0

3/d-4*d^-1-12+3 = 0

-1*d^-1 = 9 // : -1

d^-1 = -9

-1 < 0

1/(d^1) = -9 // * d^1

1 = -9*d^1 // : -9

-1/9 = d^1

d = -1/9

d = -1/9

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