-2.1/12.6=-7/n

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Solution for -2.1/12.6=-7/n equation: 


D( n )

n = 0

n = 0

n = 0

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

-2.1/12.6 = -7/n // + -7/n

-(-7/n)-2.1/12.6 = 0

7*n^-1-2.1/12.6 = 0

7*n^-1 = 0.16666667 // : 7

n^-1 = 0.02380952

-1 < 0

1/(n^1) = 0.02380952 // * n^1

1 = 0.02380952*n^1 // : 0.02380952

42.00000672 = n^1

n = 42.00000672

n = 42.00000672

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