Respostas

2014-08-25T23:38:37-03:00
6x+(2x-4)-2=0
6x+2x-4-2=0
6x+2x=4+2
8x=8
x=1
2014-08-25T23:58:04-03:00
6x + ( 2x - 4 ) - 2 = 0

6x + 2x - 4 - 2 = 0

6x + 2x = 4 + 2

8x = 6

x = 6/8

x = 0,75

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