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September 16, 2014

September 16, 2014

Posted by **Shawn** on Sunday, October 12, 2008 at 4:02pm.

I understand this so far

f(a)=f(a+15)

1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7)

I have multiplied the LCD of (a-8)(a+7)(a+22)by both sides with no luck.

This is a multiple choice question

a.) -161/8

b.) 120/7

c.) 161/7

d.) -17

I have the answer as

- Math problem still stuck -
**Ryan**, Sunday, October 12, 2008 at 4:05pmJust plug in the values since it's multiple choice.

- Math problem still stuck -
**Shawn**, Sunday, October 12, 2008 at 4:12pmWhen I plug in the values what am I looking to find?

- Math problem still stuck -
**bobpursley**, Sunday, October 12, 2008 at 4:20pmIf you want to plug in, plug in the answer for a to see if both sides are equal.

- Math problem still stuck -
**Ryan**, Sunday, October 12, 2008 at 4:21pmyou want 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7), your second equation, to be true, so you true the four values of a given in the equation and if both sides are equal, you've found it.

- Math problem still stuck -
**Ryan**, Sunday, October 12, 2008 at 4:22pm*try not true

- Math problem still stuck -
- Math problem still stuck -
**Shawn**, Sunday, October 12, 2008 at 4:32pmSo you are saying that it is none of the multiple choice answers of -161/8

120/7 161/7 or -17

?

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