((4)/(x-7))+((3)/(x+4))

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Solution for ((4)/(x-7))+((3)/(x+4)) equation: 


D( x )

x+4 = 0

x-7 = 0

x+4 = 0

x+4 = 0

x+4 = 0 // - 4

x = -4

x-7 = 0

x-7 = 0

x-7 = 0 // + 7

x = 7

x in (-oo:-4) U (-4:7) U (7:+oo)

4/(x-7)+3/(x+4) = 0

(4*(x+4))/((x-7)*(x+4))+(3*(x-7))/((x-7)*(x+4)) = 0

4*(x+4)+3*(x-7) = 0

7*x-5 = 0

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

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

7*x-5 = 0

7*x-5 = 0 // + 5

7*x = 5 // : 7

x = 5/7

x = 5/7

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