3(2/n-7)=9

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Solution for 3(2/n-7)=9 equation: 


D( n )

n = 0

n = 0

n = 0

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

3*(2/n-7) = 9 // - 9

3*(2/n-7)-9 = 0

3*(2*n^-1-7)-9 = 0

3*(2*n^-1-7)-9 = 0

6*n^-1-30 = 0

6*n^-1-30 = 0

6*n^-1 = 30 // : 6

n^-1 = 5

-1 < 0

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

1 = 5*n^1 // : 5

1/5 = n^1

n = 1/5

n = 1/5

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