9/x=63/77

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Solution for 9/x=63/77 equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x = 63/77 // - 63/77

9/x-(63/77) = 0

9/x-9/11 = 0

9*x^-1 = 9/11 // : 9

x^-1 = 1/11

-1 < 0

1/(x^1) = 1/11 // * x^1

1 = 1/11*x^1 // : 1/11

11 = x^1

x = 11

x = 11

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