21/p=252/78

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Solution for 21/p=252/78 equation: 


D( p )

p = 0

p = 0

p = 0

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

21/p = 252/78 // - 252/78

21/p-(252/78) = 0

21/p-42/13 = 0

21*p^-1 = 42/13 // : 21

p^-1 = 2/13

-1 < 0

1/(p^1) = 2/13 // * p^1

1 = 2/13*p^1 // : 2/13

13/2 = p^1

p = 13/2

p = 13/2

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