(5x+4)/(x+4)=9/2

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Solution for (5x+4)/(x+4)=9/2 equation: 


D( x )

x+4 = 0

x+4 = 0

x+4 = 0

x+4 = 0 // - 4

x = -4

x in (-oo:-4) U (-4:+oo)

(5*x+4)/(x+4) = 9/2 // - 9/2

(5*x+4)/(x+4)-(9/2) = 0

(5*x+4)/(x+4)-9/2 = 0

(2*(5*x+4))/(2*(x+4))+(-9*(x+4))/(2*(x+4)) = 0

2*(5*x+4)-9*(x+4) = 0

x-28 = 0

(x-28)/(2*(x+4)) = 0

(x-28)/(2*(x+4)) = 0 // * 2*(x+4)

x-28 = 0

x-28 = 0 // + 28

x = 28

x = 28

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