Well, take a look at this
-10x + 3 = -x + 21
+ 10 x +10x
--------------------------
3 = 9x + 21
-21 -21
---------------------
-18 = 9x
-2 = x
hope this helps
The answer is B I asked my dad and he is supppperrrr smart lol
Answer:

Step-by-step explanation:
To convert a given angle from degrees to radians, we multiply by

The given degree measure is 228°
Its radian equivalence is

Therefore the exact value of 228° is

I believe they call it a recurring number, for example, infinity is a recurring number.