Find the Catechism of the Catholic Church on-line or find a copy and read from page 47 Paragraph 153, through page 53 Paragraph 165. It's spelled out there in great detail so as to avoid all sorts errors people have made over the centuries but it's also plenty clear enough for anyone to understand. The RCC very definitely does teach Salvation by Grace through Faith in Christ alone whether folks you're around teach that or not.
What the RCC does NOT teach because the Scriptures do NOT teach it is the bogus "once saved always saved" marketing slogan that Luther started. That's why confession of sins and the Grace that comes to us through the Eucharist is so important. It's not where our Salvation comes from, it's where the Grace to run the race all the way to our finish line comes from.
Notice that the above quote [your accusatory words] includes "Faith Alone", Sola Fide. (One of the five Solas, which stand together.) You included Sola Fide in a list of "inventions".
Yet in this post I am responding to, you said;
There goes the "invention" claim, in regards to Sola Fide, for you've contradicted yourself.
The Sola Scriptura (again, but one Sola of five which need be regarded together) can be found in Scripture itself, and in the teachings (tradition as it were) of the Early Fathers.
I'm going to be generous, and assume here for sake of discussion that although you listed Sola Fide as an "invention", it does not mean that the RCC borrowed the idea from the Reformers. [smile]
Yet for the sake of discussion, they did indeed help bring much focus upon it, during those turbulent times.
As far as the Sola Scripturas is concerned, the opposition to it is based upon the desire & premise of replacing it with Sola Ecclesia (Whatever We Say). That much is plain enough.