9/x=2/7

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Solution for 9/x=2/7 equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x = 2/7 // - 2/7

9/x-(2/7) = 0

9/x-2/7 = 0

9*x^-1 = 2/7 // : 9

x^-1 = 2/63

-1 < 0

1/(x^1) = 2/63 // * x^1

1 = 2/63*x^1 // : 2/63

63/2 = x^1

x = 63/2

x = 63/2

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