Posted by **Jonathon** on Wednesday, October 13, 2010 at 6:07pm.

Replace each question mark with an appropriate expression so that the resulting expressions are equivalent.

9(a-b)/7a=?/7a^4(a-b)

- math -
**crysta**, Wednesday, October 13, 2010 at 6:20pm
wouldnt it be =7

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