Indent the variable definition after an equation

Question

I would like to indent the definition of the variables used in the equation like below:
a = b + c

where,
    a = the variable a
    b = the variable b
    c = the variable c

I have tried doing as shown below, but it does not work:
begin{frame}
    [ a = b + c ]
    begin{small}
        where, 
        indent a = the variable a
        indent b = the variable b
        indent c = the variable c
    end{small}
end{frame}

Please let me know the correct way to do it. Thank you.

campa · Answer

parindent is 0pt by default in beamer, so indent will do nothing. Better use another approach anyway
documentclass{beamer}

begin{document}

begin{frame}

[ a = b + c ]
where
begin{tabular}[t]{r@{}l}
$a={}$ & the variable a
$b={}$ & the variable b
$c={}$ & the variable c
end{tabular}

or
$begin{aligned}[t]
a&=text{the variable a}
b&=text{the variable b}
c&=text{the variable c}
end{aligned}$

end{frame}

end{document}

Note that begin{small}...end{small} works because of a quirk of how begin and end are defined.

Indent the variable definition after an equation

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