But in my case here, I only want to give credit for the solution set (with braces). That's what I asked for, and that's what I am so excited that WeBWorK can help me get students to do! They don't seem to learn this as quickly with paper and pencil assignments and red ink. But when they see that they don't get credit for {x = 2/3} on WeBWorK, they will ask me and learn.
Thanks!
Paul