7/2=4/x-4

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Solution for 7/2=4/x-4 equation: 


D( x )

x = 0

x = 0

x = 0

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

7/2 = 4/x-4 // - 4/x-4

7/2-(4/x)+4 = 0

7/2-4*x^-1+4 = 0

-4*x^-1 = -15/2 // : -4

x^-1 = 15/8

-1 < 0

1/(x^1) = 15/8 // * x^1

1 = 15/8*x^1 // : 15/8

8/15 = x^1

x = 8/15

x = 8/15

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