XPRBexprAddition(XPRBvar, XPRBexpr) Operator

public static XPRBexpr operator +(
	XPRBvar v,
	XPRBexpr l1
)

Public Shared Operator + ( 
	v As XPRBvar,
	l1 As XPRBexpr
) As XPRBexpr

XPRBvar var = new XPRBvar("Variable1");
XPRBvar var2 = new XPRBvar("Variable2");
XPRBexpr exp = new XPRBexpr(var + 3.6*var2);
XPRBexpr expnew;
...
expnew = var+exp;