(8/(w+4))=-5

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Solution for (8/(w+4))=-5 equation: 


D( w )

w+4 = 0

w+4 = 0

w+4 = 0

w+4 = 0 // - 4

w = -4

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

8/(w+4) = -5 // + 5

8/(w+4)+5 = 0

8/(w+4)+(5*(w+4))/(w+4) = 0

5*(w+4)+8 = 0

5*w+28 = 0

(5*w+28)/(w+4) = 0

(5*w+28)/(w+4) = 0 // * w+4

5*w+28 = 0

5*w+28 = 0 // - 28

5*w = -28 // : 5

w = -28/5

w = -28/5

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