25-5/x=4

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Solution for 25-5/x=4 equation: 


D( x )

x = 0

x = 0

x = 0

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

25-(5/x) = 4 // - 4

25-(5/x)-4 = 0

25-5*x^-1-4 = 0

-5*x^-1 = -21 // : -5

x^-1 = 21/5

-1 < 0

1/(x^1) = 21/5 // * x^1

1 = 21/5*x^1 // : 21/5

5/21 = x^1

x = 5/21

x = 5/21

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