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April 16, 2014

April 16, 2014

Posted by **Habtamu Mareba** on Tuesday, November 6, 2012 at 12:21am.

- High school -
**Reiny**, Tuesday, November 6, 2012 at 8:19amare you solving the 2 equations

2x-2y = 4

3x+4y = 6 ???

double the 1st, then add it to the 2nd

4x-4y=8

3x+4y=6

7x = 14

x = 2

into the 1st:

4 - 2y = 4

-2y = 0

y = 0

x=2 , y = 0

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