Respostas

2014-08-22T11:37:34-03:00
OLA NAUM TENHO CERTEZA MAIS ACHO QUE E ASSIM;

2 . (x - 2) - 2 . (x - 3) = - x . (- 2)
2x - 4 - 2x + 6 = 2x
2x - 2x - 2x = 4 - 6
- 2x = - 2 . (- 1)
2x = 2
x = 2/2
x = 1


2014-08-22T12:17:20-03:00


2(x-2)-2(x-3)=-x(-2)

2x-4-2+6=2x

2x-2x-2x=4-6

-2x=2

x=2/2

x=1