
LaTex Help Help with LaTex and writing math equations 
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August 26th, 2015, 11:54 AM  #1 
Member Joined: Jun 2015 From: Casablanca Posts: 47 Thanks: 3  Write equations in horizontal mode
I want to write equations numbered and horizontally like this. Thank you for your help. Last edited by Mohajir; August 26th, 2015 at 12:02 PM. 
August 26th, 2015, 12:33 PM  #2 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,359 Thanks: 823 Math Focus: Elementary mathematics and beyond 
Define a table that doesn't have any borders. $\displaystyle \begin{array}{ l c r } 1 & 2 & 3 \\ 4 & 5 & 6 \\ 7 & 8 & 9 \\ \end{array}$ 
August 26th, 2015, 01:16 PM  #3 
Member Joined: Jun 2015 From: Casablanca Posts: 47 Thanks: 3 
Thank you for your answer. This is what I did: \documentclass[12p]{article} \usepackage{amsmath} \usepackage{amssymb} \usepackage{graphicx} \begin{document} \begin{tabular}{ l c r } $2x+3=7$ & $5x2=3$ & $2x+7=11$\\ $6x+1=9$ & $6x+1=9$ & $4x5=14$ \\ $2x+3=7$ & $5x2=3$ & $2x+7=11$ \\ \end{tabular} \end {document} And it produced This. Now, How would I do to number them automatically with a bold font? Also, how would I do to increase horizontal spaces? 
August 26th, 2015, 01:50 PM  #4 
Member Joined: Jun 2015 From: Casablanca Posts: 47 Thanks: 3  aaa
I enhanced a little the equations, but still the numbering increases vertically instead of horizontally: \documentclass[12p]{article} \usepackage{amsmath} \usepackage{amssymb} \usepackage{graphicx} \usepackage{multicol} \begin{document} \begin{enumerate} \begin{multicols}{3} \item $2x+3=7$ \item $5x2=3$ \item $2x+7=11$ \item $9x1=4$ \item $6x+1=9$ \item $4x5=14$ \item $2x+3=7$ \item $5x2=3$ \item $2x+7=11$ \end{multicols} \end{enumerate} \end{document} Last edited by Mohajir; August 26th, 2015 at 01:57 PM. 
August 26th, 2015, 03:27 PM  #5 
Global Moderator Joined: Oct 2008 From: London, Ontario, Canada  The Forest City Posts: 7,359 Thanks: 823 Math Focus: Elementary mathematics and beyond 
Use \textbf{...} for bold font. To increase spacing, try \quad.
Last edited by greg1313; August 26th, 2015 at 03:48 PM. 
August 26th, 2015, 03:51 PM  #6 
Member Joined: Jun 2015 From: Casablanca Posts: 47 Thanks: 3 
Thank you very much for the time you dedicated to this. I really appreciate.

September 12th, 2015, 06:29 AM  #7 
Senior Member Joined: Oct 2014 From: I don't know... Posts: 216 Thanks: 26 Math Focus: Calculus 
You could also use the matrix structure: Code: \begin{document} \begin{equation*} \begin{matrix} 2x+3=7 & 5x2=3 & 2x+7=11 \\ 6x+1=9 & 6x+1=9 & 4x5=14 \\ 2x+3=7 & 5x2=3 & 2x+7=11 \\ \end{matrix} \begin{equation*} \end{document} $\displaystyle \begin{matrix} 2x+3=7 & 5x2=3 & 2x+7=11 \\ 6x+1=9 & 6x+1=9 & 4x5=14 \\ 2x+3=7 & 5x2=3 & 2x+7=11 \\ \end{matrix} $ 

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equations, horizontal, mode, write 
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