12/14=18/w

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Solution for 12/14=18/w equation: 


D( w )

w = 0

w = 0

w = 0

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

12/14 = 18/w // - 18/w

12/14-(18/w) = 0

12/14-18*w^-1 = 0

-18*w^-1 = -6/7 // : -18

w^-1 = 1/21

-1 < 0

1/(w^1) = 1/21 // * w^1

1 = 1/21*w^1 // : 1/21

21 = w^1

w = 21

w = 21

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