To determine whether the expressions \( 3 + (4x + 1) \) and \( 4 - 4x \) are equivalent, let's simplify the first expression:
- Simplify \( 3 + (4x + 1) \): \[ 3 + 4x + 1 = 4 + 4x \]
Now, we have:
- \( 3 + (4x + 1) = 4 + 4x \)
- The second expression is \( 4 - 4x \).
Now we need to compare \( 4 + 4x \) and \( 4 - 4x \):
- \( 4 + 4x \) is not the same as \( 4 - 4x \).
Therefore, the correct answer is: No, they are not because \( 3 + (4x + 1) \) simplifies to \( 4 + 4x \), which is not equivalent to \( 4 - 4x \).