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December 21, 2014

December 21, 2014

Posted by **shae** on Wednesday, May 2, 2012 at 10:05am.

x +8y = 3

4x - 2y = 7

- Algebra -
**Reiny**, Wednesday, May 2, 2012 at 10:57amfirst one times 4 ----> 4x + 32y = 12

keep the the 2nd ----> 4x - 2y = 7

subtract them

34y = 5

y = 5/34

sub into original first

x + 8(5/34) = 3

x = 3 - 40/34 = 31/17

x = 31/17 , y = 5/34

( checked the answer)

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