-7=8/(w-3)

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Solution for -7=8/(w-3) equation: 


D( w )

w-3 = 0

w-3 = 0

w-3 = 0

w-3 = 0 // + 3

w = 3

w in (-oo:3) U (3:+oo)

-7 = 8/(w-3) // - 8/(w-3)

-(8/(w-3))-7 = 0

-8*(w-3)^-1-7 = 0

-8/(w-3)-7 = 0

(-7*(w-3))/(w-3)-8/(w-3) = 0

-7*(w-3)-8 = 0

13-7*w = 0

(13-7*w)/(w-3) = 0

(13-7*w)/(w-3) = 0 // * w-3

13-7*w = 0

13-7*w = 0 // - 13

-7*w = -13 // : -7

w = -13/(-7)

w = 13/7

w = 13/7

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