-You forgot to add jx' key, just downloaded it
-Is your architecture 32/64 bit?
-You seem to be missing the toutatis-updates repo, you need to edit your /etc/apt/sources.list as super user. There might already be a line that's commented out (starting with a #) if so remove the # or if not, add e.g. deb http://nl.archive.trisquel.info/trisquel/ toutatis-updates main

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