Respostas

2014-08-25T19:56:03-03:00
5(x+3)- 2(x-1)=10
5x + 15 - 2x + 2 = 10
5x - 2x = 10 - 15 - 2
3x = -7
x = -7/3
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2014-08-25T19:57:30-03:00