neither
Step-by-step explanation:
Step 1 :
Given 2x-y = 5
=> y=2x-5 => slope of this line m1 is 2
( If a line has an equation of the form y=mx+c, then m is the slope)
Similarly for the 2nd line,
3x-y = 5 => y = 3x-5 => slope m2 = 3
Step 2:
If the product of slopes of 2 lines equals -1 then the 2 lines are perpendicular
Here , the product of the 2 slopes m1*m2 = 2*3 = 6
Hence the 2 lines are not perpendicular.
Step 3 :
If the slopes of 2 lines are equal then they are said to be parallel
Since the slopes of the 2 given lines are not equal, the 2 lines are not parallel
Step 4 :
2 lines are said to be same if they have the same equation or if one equation is n times the other.
The equation of the 2 given lines are not same or they do not have a common multiple, hence the 2 lines are not same lines.