Respostas

2014-04-24T20:57:53-03:00
5(w+3)-2(w-1)=20
5w+15-2w+2=20
3w+17=20
3w=20-17
3w=3
w=3/3
w=1
Letra b
:)
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2014-04-24T20:57:56-03:00
5(w+3)-2(w-1)=20
5w+15 -2w +2 = 20
5w-2w = 20- 17 
3w = 3 
w =   =
       3

 A resposta é a letra B) 1
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