Respostas

2014-03-31T22:28:11-03:00
|x-3|=7                 |x-3|=7
x+3=7                   x-3=-7
x=-3+7                  x= -7 - (-3)                        Resposta correta (A)
x=4                       x=10
S1: 4                     S2=10

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