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misty677970
Dec 6, 2010, 06:26 PM
How Do You Solve This?
11-2c=3d
2c-7d=-9
Unknown008
Dec 7, 2010, 12:36 AM
Add both equations together. What do you get?

(11 - 2c) + (2c - 7d) = (3d) + (-9)