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July 30, 2015

Homework Help: algebra

Posted by jim on Thursday, March 13, 2008 at 11:09pm.

show how to solve these problems:
1. 6x - y = -4
2x + 2y = 15 answer:x = 1/2
y = 7

2. x +y = 1 x = -1/3
2x - y = -2 y = 4/3

3. x - y = 3 x = 5/2
6x + 4y = 13 y = - 1/2

I just need to know how to solve these problems. Please show me how it is done.

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