7/x-1=6/9

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Solution for 7/x-1=6/9 equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x-1 = 6/9 // - 6/9

7/x-(6/9)-1 = 0

7/x-2/3-1 = 0

7*x^-1 = 5/3 // : 7

x^-1 = 5/21

-1 < 0

1/(x^1) = 5/21 // * x^1

1 = 5/21*x^1 // : 5/21

21/5 = x^1

x = 21/5

x = 21/5

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