12/8=42/n

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Solution for 12/8=42/n equation: 


D( n )

n = 0

n = 0

n = 0

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

12/8 = 42/n // - 42/n

12/8-(42/n) = 0

12/8-42*n^-1 = 0

-42*n^-1 = -3/2 // : -42

n^-1 = 1/28

-1 < 0

1/(n^1) = 1/28 // * n^1

1 = 1/28*n^1 // : 1/28

28 = n^1

n = 28

n = 28

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