0.7=7/w

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Solution for 0.7=7/w equation: 


D( w )

w = 0

w = 0

w = 0

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

0.7 = 7/w // - 7/w

0.7-(7/w) = 0

0.7-7*w^-1 = 0

-7*w^-1 = -0.7 // : -7

w^-1 = 0.1

-1 < 0

1/(w^1) = 0.1 // * w^1

1 = 0.1*w^1 // : 0.1

10 = w^1

w = 10

w = 10

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