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How do I change the equation numbering to appear in the right, instead of the left default side in Lyx?

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marked as duplicate by Werner, Guido, Claudio Fiandrino, lockstep, karlkoeller Sep 26 '13 at 19:04

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

I know that the default is suppse to be the right side but it's not like that for me. I already tried even to reinstall Lyx.. – yoav bar sinai Sep 26 '13 at 16:21
Try adding the reqno option to the \documentclass command. – Ludovic C. Sep 26 '13 at 16:23
Are you using the included thesis template? That has fleqn added to the document class by default, which does this, remove it and you should be fine (tex.stackexchange.com/questions/118976/thesis-template-lyx/…). – Torbjørn T. Sep 26 '13 at 16:25
Thanks @LudovicC., it worked :) – yoav bar sinai Sep 26 '13 at 16:30

You must be loading a package that provides this numbering alignment as the default option. You can pass packages to the document class which should override the options. Under Document > Settings... > Document Class add the custom option reqno:

enter image description here

Note that the settings may not be adequately reflecting the visual representation in LyX.

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