13-28/x=4+8/x

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Solution for 13-28/x=4+8/x equation: 


D( x )

x = 0

x = 0

x = 0

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

13-(28/x) = 8/x+4 // - 8/x+4

13-(28/x)-(8/x)-4 = 0

13-28*x^-1-8*x^-1-4 = 0

-36*x^-1 = -9 // : -36

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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