X-4/4=7/x-4

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


D( x )

x = 0

x = 0

x = 0

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

X-(4/4) = 7/x-4 // - 7/x-4

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

X-7*x^-1-1+4 = 0

-7*x^-1 = -(X+3) // : -7

x^-1 = (X+3)/7

-1 < 0

1/(x^1) = (X+3)/7 // * x^1

1 = x^1*((X+3)/7) // : (X+3)/7

7*(X+3)^-1 = x^1

x = 7*(X+3)^-1

x = 7*(X+3)^-1

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