42/15=14/n

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Solution for 42/15=14/n equation: 


D( n )

n = 0

n = 0

n = 0

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

42/15 = 14/n // - 14/n

42/15-(14/n) = 0

42/15-14*n^-1 = 0

-14*n^-1 = -14/5 // : -14

n^-1 = 1/5

-1 < 0

1/(n^1) = 1/5 // * n^1

1 = 1/5*n^1 // : 1/5

5 = n^1

n = 5

n = 5

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