Answer:
(x+4)....................
The top later is 5 because if the ladder is 10 inches half is 5 and the other half is 5
Answer:
x=-2
Step-by-step explanation:
Replace n(x) in the first equation to 18. After you get 18=20-x. You subtract 20 from each side to get -x=2. Since there's still a negative sign on the left side, you divide both sides by negative 1. As a result you get x=-2.
I have to watch the videos for the one
