Krdytkyu

How can I shift a subequations environment to the left? hspace*{} didn't work.

documentclass[journal]{IEEEtran}



usepackage{mathtools}

usepackage[overload]{empheq}



begin{document}



title{...}

author{...}



maketitle



begin{abstract}...end{abstract}



%hspace*{-2cm} 

begin{subequations}

    %hspace*{-2cm}

    begin{align}[left = empheqlbrace,]

    %hspace*{-2cm}

    &a,\

    &b,

    end{align}

end{subequations}

end{document}

Use the flalign environment:

documentclass[journal]{IEEEtran}



usepackage{mathtools}

usepackage[overload]{empheq}

usepackage{lipsum}



begin{document}



title{...}

author{...}



maketitle



begin{abstract}...end{abstract}

lipsum[11]

begin{subequations}

    %hspace*{-2cm}

    begin{flalign}[left = empheqlbrace,]

    a & = c + d, & \

     b & = e + f,

    end{flalign}

end{subequations}

lipsum



end{document} 

You can place it inside a parbox command as wide as you wish (but at least as needed for the equations)

documentclass{article}



usepackage{mathtools}

usepackage[overload]{empheq}



begin{document}



title{...}

author{...}



maketitle



begin{abstract}...end{abstract}



Test text here:



parbox{0.14textwidth}{begin{subequations}

    %hspace*{-2cm}

    begin{align}[left = empheqlbrace,]

    %hspace*{-2cm}

    &a,\

    &b,

    end{align}

end{subequations}}

end{document}

Output: