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May 23, 2015

Homework Help: Math

Posted by Neil on Wednesday, October 3, 2012 at 3:31pm.

Solve by using the subatitution method. (Please keep fractions as they are, don't convert to decimal.)

1. y= -3x - 1
2x - 3y= -8

2. 1 + 3y= 10
5x + 2y= 6

3. 2x - 6y= -2
x= 3y - 1

4. y= 1/7x + 3
x - 7y= -4

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