(7/(x-8))-(2/(1-x))=0

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Solution for (7/(x-8))-(2/(1-x))=0 equation: 


D( x )

1-x = 0

x-8 = 0

1-x = 0

1-x = 0

1-x = 0 // - 1

-x = -1 // * -1

x = 1

x-8 = 0

x-8 = 0

x-8 = 0 // + 8

x = 8

x in (-oo:1) U (1:8) U (8:+oo)

7/(x-8)-(2/(1-x)) = 0

7/(x-8)-2*(1-x)^-1 = 0

7/(x-8)-2/(1-x) = 0

(7*(1-x))/((x-8)*(1-x))+(-2*(x-8))/((x-8)*(1-x)) = 0

7*(1-x)-2*(x-8) = 0

23-9*x = 0

(23-9*x)/((x-8)*(1-x)) = 0

(23-9*x)/((x-8)*(1-x)) = 0 // * (x-8)*(1-x)

23-9*x = 0

23-9*x = 0 // - 23

-9*x = -23 // : -9

x = -23/(-9)

x = 23/9

x = 23/9

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