I take variable $b$, double it, and add four.  I subtract $4b$ from this new expression, and divide the resulting difference by two.  What is my final expression in simplest form?
Question:
I take variable $b$, double it, and add four.  I subtract $4b$ from this new expression, and divide the resulting difference by two.  What is my final expression in simplest form?
Answer:
Let's think step by step.

user
2 - b
I take variable $b$, double it, and add four.  I subtract $4b$ from this new expression, and divide the resulting difference by two.  What is my final expression in simplest form?
train