9-16/x=4+4/x

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Solution for 9-16/x=4+4/x equation: 


D( x )

x = 0

x = 0

x = 0

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

9-(16/x) = 4/x+4 // - 4/x+4

9-(16/x)-(4/x)-4 = 0

9-16*x^-1-4*x^-1-4 = 0

-20*x^-1 = -5 // : -20

x^-1 = 1/4

-1 < 0

1/(x^1) = 1/4 // * x^1

1 = 1/4*x^1 // : 1/4

4 = x^1

x = 4

x = 4

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