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August 22, 2014

August 22, 2014

Posted by **Sharday** on Friday, October 28, 2011 at 4:22am.

- Algebra -
**Jai**, Friday, October 28, 2011 at 4:26amlet x = number of multiple questions she got right.

then we set up the equation and solve for x:

(4-1)*7 + 3x = 78

21 + 3x = 78

3x = 57

x = 19

hope this helps~ :)

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