<?xml version="1.0" encoding="UTF-8"?>

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mtable groupalign="{left right} {right decimalpoint} ">
    <mtr groupalign="{left right}">
      <mtd groupalign="left">
        <mi>x</mi> 
      </mtd> 
    </mtr> 
  </mtable> </math>