9.74.3 Can you answer these questions?

9.74.3.1 align both left and right (justify) of tabularx environment

https://tex.stackexchange.com/landing/r/digest?cta=question&id=700362

I am using tabularx package and environment to list contents in the text. 
The codes are as follows. 
\documentclass[10pt]{book} 
\usepackage{newpxtext,newpxmath} 
\linespread{1.05} 
\usepackage{tabularx} 
\... 
[horizontal-alignment] [tabularx]
 

asked by wxwuse https://tex.stackexchange.com/landing/r/digest?cta=user&id=297798 Score of 2

answered by egreg https://tex.stackexchange.com/landing/r/digest?cta=user&id=4427 Score of 0

9.74.3.2 Is there a way to alter section numbering in lyx?

https://tex.stackexchange.com/landing/r/digest?cta=question&id=700558

The problem I have is this, after entering a new part in LyX the section numbering doesn't reset and i haven't been able to make it myself. Using the image as reference, I want to be able to make ... 
[lyx] [lyx-layouts]
 

asked by S. Peman https://tex.stackexchange.com/landing/r/digest?cta=user&id=307463 Score of 1

9.74.3.3 \autoref claim  broken LNCS template

https://tex.stackexchange.com/landing/r/digest?cta=question&id=700600

Please help   \autoref{claim}    gives weird references  in LNCS template 
% This is samplepaper.tex, a sample chapter demonstrating the 
% LLNCS macro package for Springer Computer Science proceedings; 
... 
[hyperref] [theorems] [journal-publishing] [journal]
 

asked by Hao S https://tex.stackexchange.com/landing/r/digest?cta=user&id=63578 Score of 1