7/w-5=4

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Solution for 7/w-5=4 equation: 


D( w )

w = 0

w = 0

w = 0

w in (-oo:0) U (0:+oo)

7/w-5 = 4 // - 4

7/w-5-4 = 0

7*w^-1 = 9 // : 7

w^-1 = 9/7

-1 < 0

1/(w^1) = 9/7 // * w^1

1 = 9/7*w^1 // : 9/7

7/9 = w^1

w = 7/9

w = 7/9

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