Question

Am in dire need of help. Please help.

Answer 1

ED = 8

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