21/6=35/n

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Solution for 21/6=35/n equation: 


D( n )

n = 0

n = 0

n = 0

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

21/6 = 35/n // - 35/n

21/6-(35/n) = 0

21/6-35*n^-1 = 0

-35*n^-1 = -7/2 // : -35

n^-1 = 1/10

-1 < 0

1/(n^1) = 1/10 // * n^1

1 = 1/10*n^1 // : 1/10

10 = n^1

n = 10

n = 10

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