Tuesday

September 23, 2014

September 23, 2014

Posted by **lee** on Tuesday, September 28, 2010 at 9:49pm.

- algebra -
**Jen**, Tuesday, September 28, 2010 at 10:24pmr+s=10

2r+4s=27

Multiply the first equation by -2 to cancel the r's.

-2r-2s=-20

2r+4s=27

2s=7

s=3.5

Put s back into either original equation to solve for r (the first one would be easier).

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