urgent

Ray wants to prove the following theorem If two angles are complementry to two congurent angles then the original two angles are congurent.He draws the diagram. Which is the best information?
1.angle QMR=cong. ang UMT
2. ang. QMR nd ang. RMS are complementry angles.ang UMT and ang TMS are complementry angles.
3.SM is perpend. to QU and ang UMT nd ang TMS are compementry angles.
4. ang QMR=cong. ang UMT , SM perpd. QU.

i think n+48 and 2n are supplement angles.
so n+48+2n=180
find n
and x and 2n are are opposite angles.hence find x
i think it works.