3(3/w-4)=-20

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Solution for 3(3/w-4)=-20 equation: 


D( w )

w = 0

w = 0

w = 0

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

3*(3/w-4) = -20 // + 20

3*(3/w-4)+20 = 0

3*(3*w^-1-4)+20 = 0

3*(3*w^-1-4)+20 = 0

9*w^-1+8 = 0

9*w^-1+8 = 0

9*w^-1 = -8 // : 9

w^-1 = -8/9

-1 < 0

1/(w^1) = -8/9 // * w^1

1 = -8/9*w^1 // : -8/9

-9/8 = w^1

w = -9/8

w = -9/8

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