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2014-07-25T22:11:51-03:00
8x-3=2x+9
8x -  2x = 9 + 3 
6x = 12
x = 12/6
x = 2 
2 5 2
2014-07-25T22:13:03-03:00
8x-3=2x+9
8x-2x=9+3
6x=12
x=12/6
x=2