42/n=8/12

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Solution for 42/n=8/12 equation: 


D( n )

n = 0

n = 0

n = 0

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

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

42/n-(8/12) = 0

42/n-2/3 = 0

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

n^-1 = 1/63

-1 < 0

1/(n^1) = 1/63 // * n^1

1 = 1/63*n^1 // : 1/63

63 = n^1

n = 63

n = 63

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