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December 19, 2014

December 19, 2014

Posted by **Steven** on Sunday, March 21, 2010 at 11:01am.

x+5y=21

-x+5y=19

- math -
**drwls**, Sunday, March 21, 2010 at 11:54amAdd the two equations together, by adding the left and right sides separately. That gives you

10y = 40.

Next divide both sides by 10 for the value of x.

Once you know x, substitute its value into either of your original equations to calculate y.

- math -
**Steven**, Sunday, March 21, 2010 at 1:14pmSo would the ordered pair be (1,4)?

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