Answer:
x = 15
Step-by-step explanation:
These angles are supplementary so you'd set up an equation like 3x -15 +150 = 180 then solve for x from there.
Answer:
-1
Step-by-step explanation:
Answer:
50 degrees
Step-by-step explanation:
Answer:
(4,-1)
Step-by-step explanation:
Yell at me if im wrong.