your stupid........................................................................
Answer:
1)Add 19
2)Multiply by 5
Step-by-step explanation:

Adding 19 to both sides.

Multiplying 5 to both sides.

∴
Answer:
the value of x is 80
Step-by-step explanation:
if you don't have a Unit Circle yet, this is a good time to get one, you can find many online, check maybe in yahoo images, or google images.
Check the picture below.
notice the section encircled in purple.