69/9=64/n

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Solution for 69/9=64/n equation: 


D( n )

n = 0

n = 0

n = 0

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

69/9 = 64/n // - 64/n

69/9-(64/n) = 0

69/9-64*n^-1 = 0

-64*n^-1 = -23/3 // : -64

n^-1 = 23/192

-1 < 0

1/(n^1) = 23/192 // * n^1

1 = 23/192*n^1 // : 23/192

192/23 = n^1

n = 192/23

n = 192/23

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