Respostas

2013-11-29T01:32:07-02:00
-2(3x+1)= 4 (-2x+2)
-6x-2=-8x+8
-6x+8x=8+2
2x=10
x=10/2 => x= 5
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2013-11-29T01:33:50-02:00
- 2(3x + 1) = 4(-2x + 2)
- 6x - 2 = - 8x + 8
- 6x + 8x = 8 + 2
2x = 10
x = 10/2
x = 5
2 5 2