x(a / b + c) - 1
<math xmlns="http://www.w3.org/1998/Math/MathML"> <apply> <csymbol cd="arith1">minus</csymbol> <apply> <csymbol cd="arith1">times</csymbol> <ci>x</ci> <apply> <csymbol cd="arith1">plus</csymbol> <apply> <csymbol cd="arith1">divide</csymbol> <ci>a</ci> <ci>b</ci> </apply> <ci>c</ci> </apply> </apply> <cn>1</cn> </apply> </math>