Response for inequality

[eellingham]

I'm trying to author questions where the student would enter answers such as 2x+3<13.  I know it's at least possible to have students enter the answer to the inequality (ie x <5) as I've seen such responses in the CEMC Open Courseware.  I'm unable to do either.  The students are not at a level where they would be able to enter interval notation such as (-infinity,5).