1/x+3+4=21/x+3

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Solution for 1/x+3+4=21/x+3 equation: 


D( x )

x = 0

x = 0

x = 0

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

1/x+3+4 = 21/x+3 // - 21/x+3

1/x-(21/x)-3+3+4 = 0

1/x-21*x^-1-3+3+4 = 0

-20*x^-1 = -4 // : -20

x^-1 = 1/5

-1 < 0

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

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

5 = x^1

x = 5

x = 5

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