8/x-7/x=1/9

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Solution for 8/x-7/x=1/9 equation: 


D( x )

x = 0

x = 0

x = 0

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

8/x-(7/x) = 1/9 // - 1/9

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

8/x-7*x^-1-1/9 = 0

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

x^-1 = 1/9

-1 < 0

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

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

9 = x^1

x = 9

x = 9

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