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Posted by **Kaleigh** on Monday, January 11, 2010 at 8:17pm.

9X-5Y-9X-6Y+10

5X2-3Y+8X2-6X+4Y

i DON'T UNDERSTAND

- Math -
**Marth**, Monday, January 11, 2010 at 8:48pmThose are all expressions. What are you instructed to do with them?

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