Question 563492
x=2y............(1)
y=x-2...........(2)
Substitute the value of x from (1) to (2)
y=2y-2
y-2y=-2
-y=-2
Multiply by -1 both sides of the above equation
-y(-1)=-2(-1)
y=2
Put the value of y in (1)
x=2y
x=2(2)
x=4


x,y=4,2



Check
=====
Put the value of x and y in (1)
x=2y
4=2(2)
4=4
Put the value of x and y in (2)
y=x-2...........(2)
2=4-2
2=2