Just need these last 2 questions for my unit will give

1. what would be the coordinate plate for this:

graph the system of equations.

{6x−4y=−24
4x−8y=−32

2. which properties justify the steps taken to solve the system?

{3x−4y=9
2x+8y=6

the steps: 6x−8y=18, 2x+8y=6
8x = 24
x = 3
3(3)−4y=9
9−4y=9
−4y=0
y = 0