Answer:
Bro cheating .
Step-by-step explanation:
imagine cheating
x=2 , y = 1
x + 2(2x-3) = 4
x+4x-6=4
5x-6=4
5x= 10
x=10/5
x=2
subs x=2 into x +2y=4
2+2y=4
2y=2
y=2/2
y=1
L²=(3-0)²+(4-0)²
L²=9+16
L²=25
L=5units