(4/(x-5))+(3/(x+4))

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Solution for (4/(x-5))+(3/(x+4)) equation: 


D( x )

x-5 = 0

x+4 = 0

x-5 = 0

x-5 = 0

x-5 = 0 // + 5

x = 5

x+4 = 0

x+4 = 0

x+4 = 0 // - 4

x = -4

x in (-oo:-4) U (-4:5) U (5:+oo)

4/(x-5)+3/(x+4) = 0

(4*(x+4))/((x-5)*(x+4))+(3*(x-5))/((x-5)*(x+4)) = 0

4*(x+4)+3*(x-5) = 0

7*x+1 = 0

(7*x+1)/((x-5)*(x+4)) = 0

(7*x+1)/((x-5)*(x+4)) = 0 // * (x-5)*(x+4)

7*x+1 = 0

7*x+1 = 0 // - 1

7*x = -1 // : 7

x = -1/7

x = -1/7

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