Friday
April 18, 2014

Homework Help: algebra!

Posted by SaRa on Tuesday, September 20, 2011 at 7:42pm.

how do you solve this by substitution:
step by step

1. 5x-y=16
5x+2y=13

2. 3x-3y=9
2x-4y=-16

3. x=-6y
y=2/3x+5

thank you!

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