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2014-06-05T22:05:33-03:00
5x+2+x=38
6x+2=38
6x=38-2
6x=36
x=36/6
x=6
2 5 2
2014-06-05T22:07:00-03:00
5x+x = 38 - 2
6x = 36
x= 36/6
x= 6
1 4 1