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March 5, 2015

March 5, 2015

Posted by **Anonymous** on Tuesday, March 23, 2010 at 9:37pm.

- algebra -
**Reiny**, Tuesday, March 23, 2010 at 10:59pmx + y = 250

and

20x + 45y = 6800

I would change the first to y = 250-x

then sub that into the second,

easy from there ....

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