8.SI.1.3

I evaluate resources for the point of veiw by, intent of informatuion, and sometimes values. Because if In evaluate my resources I can get down to the real information. example 2+a=77. Well if I take 77 and minus 2 I get 75, so for my anwser a=75. but its in LA form though. I really have no idea to explain this but thats kinda how I would tell you.