distance between them =4/

(use formula distance between two parallel lines)
now ratio is 2:1 so distance from x+2y=2 is 8/3

now again use formula between two parallel lines and you will get (if equation is x+2y=c) c=2

8/3 so c=14/3,-2/3 use 14/3 in place of c and u will get 3x+6y=14
NOTE-(distance between ax+by+c=0 and ax+by+c
1=0 is c-c
1/a
2+b
2)