20/26=30/k

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Solution for 20/26=30/k equation: 


D( k )

k = 0

k = 0

k = 0

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

20/26 = 30/k // - 30/k

20/26-(30/k) = 0

20/26-30*k^-1 = 0

-30*k^-1 = -10/13 // : -30

k^-1 = 1/39

-1 < 0

1/(k^1) = 1/39 // * k^1

1 = 1/39*k^1 // : 1/39

39 = k^1

k = 39

k = 39

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