9/n=7

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Solution for 9/n=7 equation: 


D( n )

n = 0

n = 0

n = 0

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

9/n = 7 // - 7

9/n-7 = 0

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

n^-1 = 7/9

-1 < 0

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

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

9/7 = n^1

n = 9/7

n = 9/7

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