Probably, yes; the first programmers did not even have keyboards or screens, but rather swapped out the relays manually and checked their voltmeters. But what is the point? You will not be able to complete the exercises as quickly and it will be a pain to download and configure all the software.

You can get a cheap Chromebook for $200, stick Ubuntu on it (https://www.lifewire.com/install-linux-on-chromebook-4125253), and finish both those EdX courses, probably before you can even get R and Python running on your phone. Plus you will be more motivated to finish the courses, having spent $200 and therefore proven your commitment.

If even $200 is too much, I guess you have to ask what you're doing with your life... maybe getting a stable job should take priority.