I can't really help you with problems a-d cause I can't remember how to do those one
e) x=0
f) x=−y−9
g) x=4y
x y
for problems like these H.) (2, 4) and B (5, 13) i.) C(-3,4) and D(2,-5) I was always told to remember rise over run.
I struggled with this a lot as well when I was in school. You'll be fine! Just don't over think about it cause If you do, you'll just confuse yourself even more