5/w-7/x

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Solution for 5/w-7/x equation: 


D( x )

x = 0

x = 0

x = 0

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

5/w-(7/x) = 0

5/w-7*x^-1 = 0

-7*x^-1 = -(5*w^-1) // : -7

x^-1 = (-5*w^-1)/(-7)

-1 < 0

1/(x^1) = (-5*w^-1)/(-7) // * x^1

1 = ((-5*w^-1)/(-7))*x^1 // : (-5*w^-1)/(-7)

(7*w)/5 = x^1

x = (7*w)/5

x = (7*w)/5

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