21/p=3/9

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Solution for 21/p=3/9 equation: 


D( p )

p = 0

p = 0

p = 0

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

21/p = 3/9 // - 3/9

21/p-(3/9) = 0

21/p-1/3 = 0

21*p^-1 = 1/3 // : 21

p^-1 = 1/63

-1 < 0

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

1 = 1/63*p^1 // : 1/63

63 = p^1

p = 63

p = 63

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