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March 4, 2015

March 4, 2015

Posted by **Kael** on Friday, February 26, 2010 at 12:52am.

- middle school math -
**Reiny**, Friday, February 26, 2010 at 8:38am3d + 2b = 1475

4d + b = 1550

I would change the second equation to

b = 1550 - 4d and sub that into the first

solve for d

3d + 2(1550-4d) = 1475

easy from here ....

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