tag:blogger.com,1999:blog-5283384329037392546.post8705300544935281801..comments2012-05-09T06:25:29.421-07:00Comments on RS: Exercícios 7ºano - Expressões algébricasRita Silva e Sousahttp://www.blogger.com/profile/01089014133591817323noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5283384329037392546.post-3276527983685710782012-05-09T06:25:29.421-07:002012-05-09T06:25:29.421-07:002(a-5)+2(2a+7)2(a-5)+2(2a+7)Anonymousnoreply@blogger.com