2/w+2=-7

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Solution for 2/w+2=-7 equation: 


D( w )

w = 0

w = 0

w = 0

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

2/w+2 = -7 // + 7

2/w+2+7 = 0

2*w^-1 = -9 // : 2

w^-1 = -9/2

-1 < 0

1/(w^1) = -9/2 // * w^1

1 = -9/2*w^1 // : -9/2

-2/9 = w^1

w = -2/9

w = -2/9

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