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April 20, 2014

April 20, 2014

Posted by **Janet** on Wednesday, October 31, 2012 at 2:32pm.

2x+5y=3

X-3y=7

- alegbra 1 -
**Reiny**, Wednesday, October 31, 2012 at 4:09pmfrom the 2nd:

x-3y = 7 --> x = 3y+7

sub into the first

2x + 5y = 3

2(3y+7) + 5y = 3

6y + 14 + 5y = 3

11y = -11

y = -1

sub that into x = 3y+7 = -3+7 = 4

x = 4 , y = -1

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