8/9=5/k

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Solution for 8/9=5/k equation: 


D( k )

k = 0

k = 0

k = 0

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

8/9 = 5/k // - 5/k

8/9-(5/k) = 0

8/9-5*k^-1 = 0

-5*k^-1 = -8/9 // : -5

k^-1 = 8/45

-1 < 0

1/(k^1) = 8/45 // * k^1

1 = 8/45*k^1 // : 8/45

45/8 = k^1

k = 45/8

k = 45/8

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