(3x-8)/x=13/x

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Solution for (3x-8)/x=13/x equation: 


D( x )

x = 0

x = 0

x = 0

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

(3*x-8)/x = 13/x // - 13/x

(3*x-8)/x-(13/x) = 0

(3*x-8)/x-13*x^-1 = 0

(3*x-8)/x-13/x = 0

3*x-13-8 = 0

3*x-21 = 0

(3*x-21)/x = 0

(3*x-21)/x = 0 // * x

3*x-21 = 0

3*x-21 = 0 // + 21

3*x = 21 // : 3

x = 21/3

x = 7

x = 7

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