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December 21, 2014

December 21, 2014

Posted by **Eli** on Wednesday, September 10, 2008 at 1:10am.

- math -
**Quidditch**, Wednesday, September 10, 2008 at 1:46amLet B = the number of balloons in each bag. The problem says that each bag has the same number of balloons. Also, after all the bags are used, 18 more balloons are still needed to get to 138.

The equation would be:

5B + 18 = 138

To solve for B first subtract 18 from each side:

5B = 120

The last step is to divide both sides by 5 to get a single B on the left and the number of balloons in a single bag on the right.

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