8/9=5/x-4

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Solution for 8/9=5/x-4 equation: 


D( x )

x = 0

x = 0

x = 0

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

8/9 = 5/x-4 // - 5/x-4

8/9-(5/x)+4 = 0

8/9-5*x^-1+4 = 0

-5*x^-1 = -44/9 // : -5

x^-1 = 44/45

-1 < 0

1/(x^1) = 44/45 // * x^1

1 = 44/45*x^1 // : 44/45

45/44 = x^1

x = 45/44

x = 45/44

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