21/x-6-81/x-1

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Solution for 21/x-6-81/x-1 equation: 


D( x )

x = 0

x = 0

x = 0

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

21/x-(81/x)-6-1 = 0

21/x-81*x^-1-6-1 = 0

-60*x^-1 = 7 // : -60

x^-1 = -7/60

-1 < 0

1/(x^1) = -7/60 // * x^1

1 = -7/60*x^1 // : -7/60

-60/7 = x^1

x = -60/7

x = -60/7

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