Respostas

2014-03-05T22:45:53-03:00
5x.2 - 3x = 0 
10x - 3x = 0
7x = 0
x= 7\0
5x2-3x=0
5x2-3x=0 5x-3x-2=0 2x-2=0 x=2\2 x=1
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