Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/Publishing:TeXLive/openSUSE_Tumbleweed/Publishing:TeXLive.repo
zypper refresh
zypper install texlive-newtx
Para openSUSE Factory execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/Publishing:TeXLive/openSUSE_Factory/Publishing:TeXLive.repo
zypper refresh
zypper install texlive-newtx
Para 16.0 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/Publishing:TeXLive/16.0/Publishing:TeXLive.repo
zypper refresh
zypper install texlive-newtx
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/Publishing:TeXLive/15.6/Publishing:TeXLive.repo
zypper refresh
zypper install texlive-newtx