Start off by combining like terms (your y's).
7y - 6y - 10 = 13
y - 10 = 13
Now you need to get y by itself so add 10 to both sides
y - 10 = 13
+10 +10
y = 23
If angle 5 is 78 degrees then angle 2 is 102
theeeee answeeer is 189 (I made the e's longer BC it says it need to be longer)

Depending on the scenario you would either shade everything in between these two points or it can be any real number/ point on the graph.
There isn't much info to go on how they visually want to see it.
Like you could easily graph this as a number line and shade everything from 1 to 11.25 and put a solid dot on both sides.