Put both equations in the form y=mx+b
4x-y=6
Add y to both sides and subtract 6 from both sides
y=4x-6
20x - 5y = 24
Add 5y to both sides and subtract the 24 from both sides
5y=20x-24
Divide both sides by 5
y= 4x-4.8
Both equations have slope of 4 so they are parallel to each other
They have different y-intercepts