Answer
See the explanation
Work Step by Step
ADVANTAGE:
Solving linear equations by graphing provides a good visual representation and a good understanding of what is happening in the problem. It also shows the answer to the system. Finally, this method clearly shows any inconsistencies in the problem and can prove a 'no-solution' answer.
DISADVANTAGE:
Solving linear equations by graphing can be inaccurate and less precise than an algebraic method. It can be misread, and the exact coordinates can be hard to find. It can be hard to make the graph as well. Additionally, it can be time-consuming and take up important time for a test, etc. Finally, it can be hard to graph more complex things, making more room for errors.