Add sin(x) to both sides
tan(x)sin(x)=sin(x)
Divide sin(x) from both sides
tan(x)=1
now you just have to figure out where tan(x)=1. you can figure this out from there by looking at the unit circle.
Step-by-step explanation:
Arithmetic mean

Not sure what you're asking. are you wanting to solve 5 ( a - b), where b equals those two things listed below? If that's the case, I can definitely help. If not, please clarify.
Answer:
slope = 4/1 or 4
Step-by-step explanation:
(2, 14)
(1, 10)
Formula = 
14-10 over 2 -1
4/ 1 = 4