(4)/(x+2)-(7)/(x-5)

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Solution for (4)/(x+2)-(7)/(x-5) equation: 


D( x )

x-5 = 0

x+2 = 0

x-5 = 0

x-5 = 0

x-5 = 0 // + 5

x = 5

x+2 = 0

x+2 = 0

x+2 = 0 // - 2

x = -2

x in (-oo:-2) U (-2:5) U (5:+oo)

4/(x+2)-(7/(x-5)) = 0

4/(x+2)-7*(x-5)^-1 = 0

4/(x+2)-7/(x-5) = 0

(4*(x-5))/((x+2)*(x-5))+(-7*(x+2))/((x+2)*(x-5)) = 0

4*(x-5)-7*(x+2) = 0

-3*x-34 = 0

(-3*x-34)/((x+2)*(x-5)) = 0

(-3*x-34)/((x+2)*(x-5)) = 0 // * (x+2)*(x-5)

-3*x-34 = 0

-3*x-34 = 0 // + 34

-3*x = 34 // : -3

x = 34/(-3)

x = -34/3

x = -34/3

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