Answer:
Move r to left or right then divide the numbers
Answer:
the 1st one
Step-by-step explanation:
Answer:
k=1
Step-by-step explanation:

Subtract 8 from both sides

Divide

Simplify

I'm not sure how to display a graph on here, so I'm afraid I can't help you with that part.
However, the answer is C. (-2,3).
To create the graph, either put it into a graphing calculator or manually graph the equations by plugging in different numbers to the equation.