1-2/(x-1)=3

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Solution for 1-2/(x-1)=3 equation: 


D( x )

x-1 = 0

x-1 = 0

x-1 = 0

x-1 = 0 // + 1

x = 1

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

1-(2/(x-1)) = 3 // - 3

1-(2/(x-1))-3 = 0

1-2*(x-1)^-1-3 = 0

1-2/(x-1)-3 = 0

(-3*(x-1))/(x-1)-2/(x-1)+(1*(x-1))/(x-1) = 0

1*(x-1)-3*(x-1)-2 = 0

x-3*x-1+1 = 0

-2*x = 0

(-2*x)/(x-1) = 0

(-2*x)/(x-1) = 0 // * x-1

-2*x = 0

-2*x = 0 // : -2

x = 0

x = 0

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