E is the midpoint of line DF DE =8x and EF = 3x+15 Find EF

Answer 1

Hi Kiley,

E is the midpoint of line DF DE =8x and EF = 3x+15 Find EF

Here is your line

D________________E________________F

|--------- 8x ------- | ------ 3x + 15 ---|

You are told E is the midpoint: That means the length of DE is the same as EF. They are equal.

8x = 3x+15

Solve for x x= 3

Check your answer

8x = 8*3 = 24

3x + 15 = 3(3) + 15 = 24

EF then equals 24

Let me know if you need any more help!