Answer:
x=5
Step-by-step explanation:
these two angles are the same so set both equations equal to each other and solve for x.
[tex]23x-5=21x+5\\23x=21x+10\\2x=10\\x=5[/tex]
1. set equations equal to each other
2. add 5 to both sides
3. subtract 21x from both sides
4. divide both sides by 2 to get x alone
5. x=5
