Answer:
b-14 = 9
b = 23
Step-by-step explanation:
Add 14 to 9 to get b alone.
U= -1
-9u+6u=-36+39
-3u=3
u=-1
I can help you but i cant see with the reflection thingy
A benefit is the technology can be more aaurate and you can use a compass and a straightedge wrong and get lost. Also the compass can break
