Answer:
ED = 8
Step-by-step explanation:
6:9::x+4:2x+4 This is a proportion.
Set it up as 6/9 = x+4/2x+4
cross multiply which will get you 9x +36 = 12x + 24
subtract on each side to get 12 = 3x
divide 3x to get x = 4
then put into equation. (4) + 4 = 8
