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2014-08-25T13:11:19-03:00
-2x+4x=6-5+3+8
2x=12
X=6
Letra D
1 5 1
2014-08-25T13:16:49-03:00
Resposta=
-2x-8-3=-4x+6-5
-2x-11=-4x+1
-2x+4x=1+11
2x=12
x=12/2
x=6
letra=d
-2x-8-3=-4x+6-5
-2x-11=-4x+1
-2x+4x=1+11
2x=12
x=12/2
x=6 letra=d