4/(w-5)=7

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Solution for 4/(w-5)=7 equation: 


D( w )

w-5 = 0

w-5 = 0

w-5 = 0

w-5 = 0 // + 5

w = 5

w in (-oo:5) U (5:+oo)

4/(w-5) = 7 // - 7

4/(w-5)-7 = 0

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

4-7*(w-5) = 0

39-7*w = 0

(39-7*w)/(w-5) = 0

(39-7*w)/(w-5) = 0 // * w-5

39-7*w = 0

39-7*w = 0 // - 39

-7*w = -39 // : -7

w = -39/(-7)

w = 39/7

w = 39/7

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