(7/n-3)=(4/n)

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Solution for (7/n-3)=(4/n) equation: 


D( n )

n = 0

n = 0

n = 0

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

7/n-3 = 4/n // - 4/n

7/n-(4/n)-3 = 0

7/n-4*n^-1-3 = 0

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

n^-1 = 1

-1 < 0

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

1 = 1*n^1 // : 1

1 = n^1

n = 1

n = 1

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