9/x-9=3/7

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Solution for 9/x-9=3/7 equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x-9 = 3/7 // - 3/7

9/x-(3/7)-9 = 0

9/x-3/7-9 = 0

9*x^-1 = 66/7 // : 9

x^-1 = 22/21

-1 < 0

1/(x^1) = 22/21 // * x^1

1 = 22/21*x^1 // : 22/21

21/22 = x^1

x = 21/22

x = 21/22

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