42/29=84/d

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Solution for 42/29=84/d equation: 


D( d )

d = 0

d = 0

d = 0

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

42/29 = 84/d // - 84/d

42/29-(84/d) = 0

42/29-84*d^-1 = 0

-84*d^-1 = -42/29 // : -84

d^-1 = 1/58

-1 < 0

1/(d^1) = 1/58 // * d^1

1 = 1/58*d^1 // : 1/58

58 = d^1

d = 58

d = 58

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