4/x=9/5

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Solution for 4/x=9/5 equation: 


D( x )

x = 0

x = 0

x = 0

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

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

4/x-(9/5) = 0

4/x-9/5 = 0

4*x^-1 = 9/5 // : 4

x^-1 = 9/20

-1 < 0

1/(x^1) = 9/20 // * x^1

1 = 9/20*x^1 // : 9/20

20/9 = x^1

x = 20/9

x = 20/9

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