3/(7x)-5/x=3

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Solution for 3/(7x)-5/x=3 equation: 


D( x )

x = 0

7*x = 0

x = 0

x = 0

7*x = 0

7*x = 0

7*x = 0 // : 7

x = 0

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

3/(7*x)-(5/x) = 3 // - 3

3/(7*x)-(5/x)-3 = 0

3/(7*x)-5*x^-1-3 = 0

-32/7*x^-1 = 3 // : -32/7

x^-1 = -21/32

-1 < 0

1/(x^1) = -21/32 // * x^1

1 = -21/32*x^1 // : -21/32

-32/21 = x^1

x = -32/21

x = -32/21

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