21n=3/8n - solution

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Solution for 21n=3/8n equation:

n in (-oo:+oo)

21*n = (3/8)*n // - (3/8)*n

21*n-((3/8)*n) = 0

21*n+(-3/8)*n = 0

165/8*n = 0 // : 165/8

n = 0

n = 0

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