(1/(w-7))=2

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Solution for (1/(w-7))=2 equation: 


D( w )

w-7 = 0

w-7 = 0

w-7 = 0

w-7 = 0 // + 7

w = 7

w in (-oo:7) U (7:+oo)

1/(w-7) = 2 // - 2

1/(w-7)-2 = 0

1/(w-7)+(-2*(w-7))/(w-7) = 0

1-2*(w-7) = 0

15-2*w = 0

(15-2*w)/(w-7) = 0

(15-2*w)/(w-7) = 0 // * w-7

15-2*w = 0

15-2*w = 0 // - 15

-2*w = -15 // : -2

w = -15/(-2)

w = 15/2

w = 15/2

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