30/x-30/(2x)=3

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Solution for 30/x-30/(2x)=3 equation: 


D( x )

x = 0

2*x = 0

x = 0

x = 0

2*x = 0

2*x = 0

2*x = 0 // : 2

x = 0

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

30/x-(30/(2*x)) = 3 // - 3

30/x-(30/(2*x))-3 = 0

30/x-15*x^-1-3 = 0

15*x^-1 = 3 // : 15

x^-1 = 1/5

-1 < 0

1/(x^1) = 1/5 // * x^1

1 = 1/5*x^1 // : 1/5

5 = x^1

x = 5

x = 5

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