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September 21, 2014

September 21, 2014

Posted by **Anonymous** on Thursday, October 9, 2008 at 7:36pm.

a+2b=1

-3a-8b=1

- math -
**Damon**, Thursday, October 9, 2008 at 8:40pmmultiply all terms in first equation by 4

+4a+8b = 4

-3a-8b = 1 now add

---------

1a+0b = 5 or a = 5

so use 5 for a in equation 1

5 + 2b = 1

2 b = -4

b = -2

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