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September 18, 2014

September 18, 2014

Posted by **Anonymous** on Tuesday, January 29, 2013 at 3:59pm.

- Algebra 1- Math -
**Jennifer**, Wednesday, January 30, 2013 at 8:26pm2x - y = -4

-3x + y = -9

From the first equation:

y = 2x + 4

Substitute this into the second equation:

-3x + 2x + 4 = -9

-x + 4 = -9

-x = -13

x = 13

Then plug this answer back into the first equation

2*13 - y = -4

26 - y = -4

-y = -30

y = 30

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