The problem
this is my first time using this system. I thought when it said a more detailed answer would be more than this. I wouldn't submit questions if I understood. I feel the information is very basic and I need more information on how to understand how to work this problem out. like for example how do you know when to add 5 to 13 or subtract 5 from 13 this is were my confusion is happening. thanks for your help. Also I wasn't able to get through on your phone line.
Answer provided by our tutors
We appreciate your patience, there is never any guarantee about how quickly a reply will be returned. Phone messages are returned but the best way to communicate is through email.
Please also notice (as shown in the earlier image) that clicking on a particular line provides an explanation of rational for how a particular step was executed.