7/X-9

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Solution for 7/X-9 equation: 


D( X )

X = 0

X = 0

X = 0

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

7/X-9 = 0

7*X^-1 = 9 // : 7

X^-1 = 9/7

-1 < 0

1/(X^1) = 9/7 // * X^1

1 = 9/7*X^1 // : 9/7

7/9 = X^1

X = 7/9

X = 7/9

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