Posted by **pam** on Friday, February 4, 2011 at 7:50pm.

Solve the systems of equations by elimination.

1. -2x+y=7 2. 2x+y=-9

6x+12y=24 4x+3y=1

3. 7x+3y=-1.5 4.2x-3y=-0.27

2x-5y=-30.3 5x2y=0.04

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