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October 23, 2014

Posted by **Lynn** on Sunday, November 4, 2012 at 9:06am.

- ?? -
**Writeacher**, Sunday, November 4, 2012 at 9:10amIf you really want an expert to help you, be sure to follow directions and type your

__subject__in the**School Subject**box. Any other words,__including obscure abbreviations__, are likely to delay responses from a teacher who knows that subject well.

- St.george high school -
**Steve**, Sunday, November 4, 2012 at 1:13pmd-8/d = d-2/d+10

(d-8)(d+10) = d(d-2)

d^2 + 2d - 80 = d^2 - 2d

4d = 80

d = 20

check:

12/20 = 18/30

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