Answer:
They are
Step-by-step explanation:
AA congruency theorem
AA is angle angle
The picture gives (( so that measns that (( and (( are congruent angles. The same with the (, it. is congruent to the other (.
I'd really love to help you but the way you asked made you sound so needy and that just made me not want to answer sorry...
where the choices?
-12x + 5x
-7x
Hope this helps! ;)