12/15=18/p

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Solution for 12/15=18/p equation: 


D( p )

p = 0

p = 0

p = 0

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

12/15 = 18/p // - 18/p

12/15-(18/p) = 0

12/15-18*p^-1 = 0

-18*p^-1 = -4/5 // : -18

p^-1 = 2/45

-1 < 0

1/(p^1) = 2/45 // * p^1

1 = 2/45*p^1 // : 2/45

45/2 = p^1

p = 45/2

p = 45/2

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