To determine if the expressions \( 3 + (4x + 1) \) and \( 4 - 4x \) are equivalent, we can simplify the first expression:
- Simplify \( 3 + (4x + 1) \): \[ 3 + 4x + 1 = 4 + 4x \]
Now we have:
- The first expression simplified is \( 4 + 4x \).
- The second expression is \( 4 - 4x \).
Next, we can see if \( 4 + 4x \) is equivalent to \( 4 - 4x \). Clearly, these two expressions are not equivalent because:
- \( 4 + 4x \) does not equal \( 4 - 4x \).
Thus, the answer is:
No, they are not because \( 3 + (4x + 1) \) simplifies to \( 4 + 4x \), which is not equivalent to \( 4 - 4x \).