Question

IF DE = 10x + 12, EF = 4x - 15, and DF = 2x + 21, find DF. [In your solution, put
DF =YOUR ANSWER]

Answer 1

Answer:

Hey there!

10x+12+4x-15=2x+21

14x-3=2x+21

12x=24

x=2

DF= 2x+21

DF=4+21

DF=25

Let me know if this helps :)