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April 18, 2014

April 18, 2014

Posted by **sam** on Saturday, November 17, 2012 at 8:48pm.

x=21.5+7y/8

- math -
**Steve**, Saturday, November 17, 2012 at 9:59pmit's usually easier if yu clear fractions. So,multiply #1 by4, #2 by 8:

4y = x + 16

8x = 172 + 7y

now you can rearrange things as you wish:

-x + 4y = 16

8x - 7y = 172

solution: (32,12)

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