(x-8)/(77-x)=2

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Solution for (x-8)/(77-x)=2 equation: 


D( x )

77-x = 0

77-x = 0

77-x = 0

77-x = 0 // - 77

-x = -77 // * -1

x = 77

x in (-oo:77) U (77:+oo)

(x-8)/(77-x) = 2 // - 2

(x-8)/(77-x)-2 = 0

(x-8)/(77-x)+(-2*(77-x))/(77-x) = 0

x-2*(77-x)-8 = 0

3*x-162 = 0

(3*x-162)/(77-x) = 0

(3*x-162)/(77-x) = 0 // * 77-x

3*x-162 = 0

3*x-162 = 0 // + 162

3*x = 162 // : 3

x = 162/3

x = 54

x = 54

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