9x/(9x-1)=1

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Solution for 9x/(9x-1)=1 equation: 


D( x )

9*x-1 = 0

9*x-1 = 0

9*x-1 = 0

9*x-1 = 0 // + 1

9*x = 1 // : 9

x = 1/9

x in (-oo:1/9) U (1/9:+oo)

(9*x)/(9*x-1) = 1 // - 1

(9*x)/(9*x-1)-1 = 0

(9*x)/(9*x-1)+(-1*(9*x-1))/(9*x-1) = 0

9*x-1*(9*x-1) = 0

1 = 0

1/(9*x-1) = 0

1/(9*x-1) = 0 // * 9*x-1

1 = 0

1 = 0

x belongs to the empty set

x belongs to the empty set

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