x=24
Step-by-step explanation:
3(9+4x-5)
divide x by 4x to move the x to the other side.
x=3(9+4-5)
9+4=13
x= 3(13-5)
13-5=8
x= 3(8)
Answer:
the first one since it shows all the lines being equal and therefore making the angles equal
D