Simples is used in singular, plural, and for masculine and feminine words!!
Thanks! I see by the posts you're kind of a duolingo celebrity...
But I do appreciate the response, this word really threw me off.
Haha nice to hear that... but many people here are working hard, not just me... Bons estudos!! =)
"Não é (assim) tão simples" ("assim" is optional, it just gives emphasis)
No, it's always the same word.
(since I'm already here: literally, "tão" doesn't mean "that". It means "so", as in "it's not so simple". In English it's a bit different from "it's not that simple", but I think the translation to Portuguese ends up being the same, we will more likely express one or the other using different emphasis on the "tão".