2/(x-1)=7

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Solution for 2/(x-1)=7 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)

2/(x-1) = 7 // - 7

2/(x-1)-7 = 0

2/(x-1)+(-7*(x-1))/(x-1) = 0

2-7*(x-1) = 0

9-7*x = 0

(9-7*x)/(x-1) = 0

(9-7*x)/(x-1) = 0 // * x-1

9-7*x = 0

9-7*x = 0 // - 9

-7*x = -9 // : -7

x = -9/(-7)

x = 9/7

x = 9/7

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