(X+1)/(x-2)=4/7

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Solution for (X+1)/(x-2)=4/7 equation: 


D( x )

x-2 = 0

x-2 = 0

x-2 = 0

x-2 = 0 // + 2

x = 2

x in (-oo:2) U (2:+oo)

(X+1)/(x-2) = 4/7 // - 4/7

(X+1)/(x-2)-(4/7) = 0

(X+1)/(x-2)-4/7 = 0

(7*(X+1))/(7*(x-2))+(-4*(x-2))/(7*(x-2)) = 0

7*(X+1)-4*(x-2) = 0

7*X-4*x+15 = 0

(7*X-4*x+15)/(7*(x-2)) = 0

(7*X-4*x+15)/(7*(x-2)) = 0 // * 7*(x-2)

7*X-4*x+15 = 0

7*X-4*x+15 = 0 // - 7*X+15

-4*x = -(7*X+15) // : -4

x = (-(7*X+15))/(-4)

x = (7*X+15)/4

x = (7*X+15)/4

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