Answer:
C. 20
Explanation:
60 = 2x + 20 ==> solve for x
60 - 20 = 2x + 20 - 20 ==> subtract 20 on both sides to isolate x
40 = 2x ==> simplify
x = 40/2 ==> divide both sides by 2 to isolate x
x = 20 degrees
Answer: C. 20
3.5m questions
4.4m answers