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January 30, 2015

January 30, 2015

Posted by **Bryan** on Wednesday, July 16, 2008 at 8:18pm.

2/7= ?/14

- Math -
**drwls**, Wednesday, July 16, 2008 at 8:29pm7 ? = 28

? = 4

I don't see what "multiplication by 1" gets you.

- Math -
**Bryan**, Wednesday, July 16, 2008 at 8:35pmWhat did you get as the answear? and how did u get it?

- Math -
**drwls**, Wednesday, July 16, 2008 at 8:45pmI got 4, by cross-multiplying.

When a/b = c/d, ad = bc

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