Respostas

2014-04-21T12:54:23-03:00
2x+3x=500
5x=500
x=500/5
x=100
2 4 2
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2014-04-21T12:54:50-03:00
2x + 3x = 500
5x = 500
x= 500/5
x= 100
3 4 3