1/w+4=7

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Solution for 1/w+4=7 equation: 


D( w )

w = 0

w = 0

w = 0

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

1/w+4 = 7 // - 7

1/w-7+4 = 0

1*w^-1 = 3 // : 1

w^-1 = 3

-1 < 0

1/(w^1) = 3 // * w^1

1 = 3*w^1 // : 3

1/3 = w^1

w = 1/3

w = 1/3

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