Some time ago I started self studying physics and I did quite well, despite my limited knowledge of maths (some basic algebra and geometry). Now I would like to understand calculus, but I don't know what books I should use. Clearly, first I need to revisit the basic and intermediate notions of algebra. For this task I tried using this book:
https://www.amazon.com/Ron-Larson-Intermediate-Algebra-fifth/dp/B008UBLER4
but I found it to be somehow simplistic (problems are too easy, the theorems are not demonstrated, etc.)
What textbooks do you think are appropriate for someone with very basic knowledge of elementary algebra who wishes to self study calculus for use in physics?
Contrary to belief, a rigorous calculus text is right up your alley! Books such as Apostol I,II and Spivak's calculus start of by developing your understanding of the real numbers which will require you to work on your algebra skills. To understand physics outside of the university level (a first year's course) you'll need much more than calculus.
A really good understanding of multivariable calculus will get you through most undergraduate physics courses. Therefore a book which takes you through the whole calculus sequence is more desirable since you don't want to waste time trying to adjust to a new writer's style + notation. Any of these two books mentioned above provides a nice 2 for 1 in your case since they'll make you improve your algebra skills before the calculus starts.
Personally, I didn't learn from the books I've suggested, but I wish I would have. I've noticed that although I know how the ideas in calculus work (since I do a lot of differential geometry, etc), I am sometimes fuzzy on the analysis to rigorously prove arguments that I know to be true. As mathematicians, we care very much about details, especially when the big picture is clear and we want to smoothen out an argument. However, a physicists may not be to concerened about these things, so I also suggest reading other posts related to this one, as other users have suggested.
$\textbf{Comment}$:I believe I am okay in saying this, check abebooks for copies of the texts I mentioned above. They sell international copies which are much cheaper that those you'll see on amazon. I hope this helped.