นิพจน์ 9: "y" less than or equal to negative 10 StartAbsoluteValue, "x" plus 25 , EndAbsoluteValue plus 40 left brace, negative 18.4 less than or equal to "y" , right bracey≤−10x+25+40−18.4≤y
9
นิพจน์ 10: "y" less than or equal to negative 10 StartAbsoluteValue, "x" minus 40 , EndAbsoluteValue plus 40 left brace, negative 18.4 less than or equal to "y" , right bracey≤−10x−40+40−18.4≤y