20/x-10=30/x

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Solution for 20/x-10=30/x equation: 


D( x )

x = 0

x = 0

x = 0

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

20/x-10 = 30/x // - 30/x

20/x-(30/x)-10 = 0

20/x-30*x^-1-10 = 0

-10*x^-1 = 10 // : -10

x^-1 = -1

-1 < 0

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

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

-1 = x^1

x = -1

x = -1

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