7/x-3/w

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Solution for 7/x-3/w equation: 


D( x )

x = 0

x = 0

x = 0

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

7/x-(3/w) = 0

7/x-3*w^-1 = 0

7*x^-1 = -(-3*w^-1) // : 7

x^-1 = (3*w^-1)/7

-1 < 0

1/(x^1) = (3*w^-1)/7 // * x^1

1 = ((3*w^-1)/7)*x^1 // : (3*w^-1)/7

(7*w)/3 = x^1

x = (7*w)/3

x = (7*w)/3

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