3/d=12/20

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Solution for 3/d=12/20 equation: 


D( d )

d = 0

d = 0

d = 0

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

3/d = 12/20 // - 12/20

3/d-(12/20) = 0

3/d-3/5 = 0

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

d^-1 = 1/5

-1 < 0

1/(d^1) = 1/5 // * d^1

1 = 1/5*d^1 // : 1/5

5 = d^1

d = 5

d = 5

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